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Living Mood Ring

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A person's emotions are typically read by changes in their facial expression and tone of voice, but some characters and creatures go further, and may experience dramatic physical changes in response to their shifting moods.

This often takes the form of changing colors, such as in the tone of a person's skin or in glowing effects. In these cases, this goes hand-in-hand with Color-Coded Emotions, causing characters to literally become red when angry, blue when sad, and so on. Other changes may be more physical in nature; an angry character may grow spikes or claws, for instance, while a calm one may soften into a blob-like shape.

This may cause complications for these characters, as it will make it effectively impossible for them to hide or disguise their feelings or reactions. Physical changes may prove more useful as responses to the causes of the emotion, such as by giving an angry character natural weapons or making a frightened one more able to hide.

This often overlaps with Involuntary Shapeshifting. For another unusual way to show emotion, see Expressive Hair. For an extreme example triggered by anger, see Burning with Anger and Hulking Out. Luminescent Blush, Blue with Shock, Green Around the Gills and No Poker Face are more mundane versions of this. When somebody changes in response to other people's emotions, they're an Empathic Shapeshifter.


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    Anime and Manga 
  • Assassination Classroom: Koro-sensei can change his skin color to show his emotions, since he is otherwise always smiling. He's normally yellow, gains green stripes to show mocking contempt, and turns blue to show shock or sadness, magenta when sleepy or relaxed, white when bewildered, red when angry, pitch black when very angry, and glowing white when extremely angry.
  • Kaiju Girl Caramelise: Parts of Kuroe Akaishi's body transform in various ways, ranging from a scaly reptilian hand to spikes along her spine, whenever she experiences strong emotions. She tries to avoid this by being a loner, but her burgeoning feelings for Arata lead to her emotions kicking into overdrive and her sporadically turning into a Kaiju.
  • Kirby: Right Back at Ya!: Meta Knight's eyes are normally yellow, but change into different colors depending on his mood, something not seen in the games. The colors we see are green when he's serious or contemplative, blue when he's proud or content, orange when he's surprised, white when he's shocked or determined, red when he's angry, and pink when he's amused. His eyes also dim when he's asleep or unconscious. Fanfics and fanart often run with this and come up with other color-mood associations.

    Comic Books 
  • The DCU:
    • Green Lantern: The Phantom Ring is a special Lantern Ring that grants access to all parts of the Emotional Spectrum at the risk of draining your life force, and incidentally turns its wearer into this. The wearer's powers and appearance shift to what emotion they're experiencing at the time — so, for instance, if someone is scared their costume becomes yellow and they gain the powers of the Sinestro Corps.
    • Loose Cannon (first appearing in the Superman books) grows in strength and size as he gets angrier. He changes color from blue to purple, to red, and finally to white to represent his mounting rage. In his white form, he's barely capable of coherent thought.
  • Marvel Universe:
    • Excalibur (Marvel Comics): While Meggan can take on any shape she chooses, her form involuntarily changes depending on her mood, such as becoming more inhuman when she's feeling sad and taking on Nightcrawler's blue skin and hair and golden eyes when they were on the verge of a Relationship Upgrade.
    • Runaways: Depending on the Artist, Karolina Dean's skin and hair sometimes glow a certain color to indicate her emotions (pink for love, blue for distress, etc.).

    Fan Works 
  • Diaries of a Madman: Water elementals shift color according to their mood.
  • The Legend Of Zelda Ocarina Of Time Novelization: A fairy's color changes depending on her mood. Navi glows red when angry or sensing danger, yellow when afraid, and neon green when shocked.
  • The Palaververse: The Capricious Crown of Capra, an ornate, enchanted crown that just so happens to also be alive and the supreme ruler of the nation of Capra, speaks in a metallic voice and shows emotion by flashing its gems in different colours, explanations of which are spread out across a few stories. In The Tempest, its gems are described as glittering "a thoughtful green", while in Wedding March, when its gems glow purple, Burro takes a moment to recognize the color's meaning and is shocked to remember that it signifies worry, as the Crown rarely shows discomfiture in public.

    Films — Animation 
  • Chicken Little: The mechs Kirby's alien race pilots have lights that change color depending on their emotion, turning blue when they're docile, yellow when panicking or worried, and red to signal anger.
  • Disney Fairies: Downplayed for Tinker Bell, who turns red to express annoyance, but doesn't change colour for other emotions.
  • Frozen (2013): Though not living, Elsa's ice castle changes color with her emotions; blue when neutral, purple when happy, red when frightened, and gold when furious.
  • Hercules: When Hades gets pissed, his normally blue hair fire turns red.
  • Home (2015): The boov change colors to reflect emotions. Red is anger, yellow is fear, orange is happiness, blue is sadness, and pink seems to be affection. In addition, Oh has a bad habit of turning green (possibly with guilt) when he lies.
  • The LEGO Movie: Unikitty changes colors depending on her emotion — for instance, she turns red when angry.
  • Tangled: While he mostly uses his color-changing to blend into his environment, Pascal the chameleon sometimes changes color on emotions — for example, when he's startled and scared by Maximus suddenly dragging Flynn away, he turns red.

    Films — Live Action 
  • Godzilla: King of the Monsters (2019): Mothra's bioluminescence changes colours depending on her mood. This is best exemplified during the opening scene after she hatches from her egg. After one of the guards stupidly shoots her, her bioluminescence glows a bright fiery red as she angrily webs up the human guards. After Emma activates the ORCA, Mothra calms down and her bioluminescence immediately switches to a much softer and more peaceful blue.
  • Harry Potter and the Order of the Phoenix: Tonks' hair. It quickly changes from pink to red after Mad-Eye Moody calls her by her first name. Additionally, it gradually changes from pink to brown after being rejected by Remus and later getting together with him.

  • Alice, Girl from the Future: Indicators are animals that change color depending on their emotions, such as turning yellow when mistrustful, dark green when content, and transparent to show admiration.
  • The Culture: Drones often display a colored force field to show what mood they're in. They're blue by default, but turn white when angry and red when happy.
  • The Dark Artifices: Kieran mixes this with Expressive Hair. His hair changes colors (specifically colors of the sea because his mother is a water faerie) according to his mood, such as dark blue when he's upset or pale blue when he's happy. Usually this is involuntary, but he can sometimes change his hair color at will.
  • Harry Potter: Being a metamorphmagus, Tonks' hair changes with her mood, such as changing from pink to brown after being rejected by Lupin.
  • How to Train Your Dragon: The Stormfly, Camicazi's hunting dragon. Her most frequent "mood" appears to be lying, which is violet, while her natural colour is shimmering gold. All Mood Dragons seem to share the same colour-coding, though being a Talking Animal is unique to Stormfly.
  • Princesses of the Pizza Parlor: The only ceelie-girl seen as of the ninth main story has skin like this, with Color-Coded Emotions. Among other colors, yellow is implied to stand for fear or worry, orange shows embarrassment or an apologetic mood, and red signifies exertion.
  • A Tale of...: In Mistress of All Evil: A Tale of the Dark Fairy, Maleficent's skin changes colors depending on her mood. It's a light purple when she's either happy or nervous, but turns green when she's bitter.
  • Warbreaker: The Idrian royals have hair that changes colour depending on their emotions. Black is its neutral state, and it becomes red for passion, embarrassment or anger, white for fear, and golden-blonde for happiness or contentment. They can control it to some extent, along with the length of their hair, which becomes a minor plot point when one of the princesses is trying to conceal her emotions.
  • Wings of Fire: One of the reasons RainWings change colors is because of their moods. For example, they tend to turn pink when happy, and they turn blue when sad. It's not purely Involuntary Shapeshifting, however, as they can also change their colors intentionally when they need to.

    Tabletop Games 
  • Dungeons & Dragons:
    • In 5E, an eladrin's appearance can change drastically depending on their current mood. Happiness makes their skin and hair turn green in reflection of spring, anger turns them golden in reflection of the summer's heat, compassion and generosity turn them brown like leaves in the fall, and sorrow or melancholy turn them dark blue like a frozen lake in winter. However, they can only change during a long rest, and don't have to do so if they don't want (mechanically, this is because their appearance affects their teleport ability, so this prevents players from being forced into one playstyle.)
    • A storm drake's scales change in color based on its emotional state, gaining a pearlescent sheen when the creature is calm, shimmering gold when it's happy and turning a dark, leaden gray when it's angry.
    • A flumph's body glows faintly, and the color of the glow changes with its emotional state. Soft pink indicates amusement, deep blue represents sadness, green expresses curiosity, and crimson red shows anger.
    • Alkadas, which are normally greenish-blue with purple bottoms, turn red when they become angry or excited.
  • Exalted: Chillikin, monkeylike creatures created to be playmates for the Exalted's children in the First Age, have gems set in their foreheads that shine pale yellow when they're calm or content and bright red when they're angry or afraid.
  • Pathfinder:
    • Pyraustas, a type of small insectoid dragons, breathe fire that changes color with their emotions.
    • When they're happy or excited, the eyes and petals of sunflower leshys glow with stored sunlight. Conversely, when sad or depressed, they become dull and muted in color. This is noted to have had a noticeable impact on their cultural associations with colors — for instance, while a human artist would likely depict Hell as full of blazing fire and glowing lava, a sunflower leshy would depict it as a place of shadows and dull monochromes.

    Video Games 
  • Coffee Talk:
    • The markings on Lua's horns glow red when she's angry or agitated.
    • Neil's and Amanda's helmets' visors flash different colors depending on their mood, like yellow for happiness, red for anger, and pink for excitement.
  • Detroit: Become Human: The androids have circular LEDs in their right temples. Blue is their default color, yellow is for when the android is deep in thought or wirelessly interfacing with other androids, and red is for danger, stress or critical damage.
  • Horizon Zero Dawn: CYAN's complex hologram turns yellow when she experiences fear or anxiety, white when she's sorrowful, and green when deep in thought.
  • Paper Mario: Color Splash: Huey is a sentient paint can whose black label changes colors depending on his mood: red for angry, blue for sad, purple for surprised, and yellow for happy.

    Web Animation 
  • Brackenwood: A bird seen in "Prowlies at the River" is blue when it first appears, but turns red when angered by Bitey barreling past it.
  • General Mayhem: Mood Ring is a literal example, and her color changes depending on her emotions.
  • Hanazuki: Full of Treasures: The Moonflowers literally glow with Color-Coded Emotions.
  • Red vs. Blue: Huggins' appearance sometimes changes with her thoughts and moods. She turns red with anger and when contemplating murder, turns brighter with excitement, and turns pink when Sister flirts with her.
  • RWBY: Ilia Amitola, befitting her nature as a chameleon Faunus, can change her skin, hair, and eye color. Occasionally, her colors will change based on her mood, such as turning red and yellow when she's angry, green and blue when she's sad, or pink when she's embarrassed or amorous.


    Web Original 
  • The Quintessential Mary-Sue: Mary Sue's eyes changed color depending on her emotions. For example, her eyes are a stormy gray whenever she's in a neutral mood, but her eyes turn golden yellow when she is surprised.

    Western Animation 
  • Abby Hatcher: The Squeaky Peepers are a group of Fuzzlies who change color based on their shared emotional state; if one is unhappy, they all turn blue, and if they're scared, they turn yellow.
  • The Dragon Prince: Bait the glow-toad is usually yellow, but will glow in different colors to show emotion. Among others, bright green signifies fear, while red shows anger or annoyance.
  • Elena of Avalor: In the final season after Elena is given new powers after falling down a well, her red everyday dress changes its color depending on her emotions and gives an appropriate power; yellow when happy, orange when mad, blue when saddened, cyan when calm, pink when loving, purple when afraid, and grey when doubtful. When she forgives Esteban in the Grand Finale, her dress turns all white.
  • The Jetsons: Orbitty's species changes color to express emotions. Yellow stands for fear, pink for affection, black for anger, green for envy, and blue for sadness (although it can also mean "far away" when he's on tracking mode).
  • My Little Pony: Friendship Is Magic: When crystal ponies are sad or depressed, they have dull colors and plain, limp and droopy manes. When in better moods and at peace, their colors are brighter and their manes are shinier and fuller. When they're genuinely happy and full of hope, they sparkle like gemstones and become slightly faceted and transparent, and their hair styles change to more elaborate designs.
  • She-Ra and the Princesses of Power: When Melog, a magical extraterrestrial feline creature, is angry, scared or distressed, its mane, tail, eyes and mouth glow red, and its mane and tail become spiky and bristling. When it's calm or happy, these parts are blue, and its mane and tail are relaxed and wavy.
  • Steven Universe: Future: When in intense distress, Steven's gem causes him to turn bright pink all over because his PTSD has broken his ability to differentiate between minor emotional inconvenience and the end of the world. Downplayed, as this is the only emotion that effects a color change.

    Real Life 
  • Chameleons will become brighter when they're feeling excited or black when extremely agitated.