Say you just left a mountain prone to mudslides, then you are surprised you stumble upon aBrightlyColouredRainforestwithmulticolouredplantsandtheskiesarerainbow. A world that is colorful even without its wildlife. Congratulations, you just entered an Amazing Technicolor World. But an Amazing Technicolor World is not neccessarily any world as a whole—it can also be just be part of one.
Not to be confused with Amazing Technicolor Battlefield but may be associated with it.
In Paranoia, the various areas of Alpha Complex are color-coded to match the minimum security clearance needed to be there legally. These start at Infrared (black), then run through the entire rainbow in ascending order (Red, Orange, Yellow, Green, Blue, Indigo, Violet), before ending with the highest clearance, Ultraviolet, which is represented with white. The color-coding can be as simple as a meter-wide stripe along the walls, but often, the entire area is painted in the relevant color.
Traverse Town is full of various colors of neon, especially in the Second and Third District. The new districts added in Dream Drop Distance, which are full of colorful icicle lights, are even flashier.
Monstro (Pinocchio)'s insides are a garish lavender with green and red spots everywhere.
Atlantica (The Little Mermaid) is a bright turquoise and is populated by loudly colored sea life.
Hollow Bastion/Radiant Garden is full of indigo, green, and gold.
End of the World from Kingdom Hearts is a deep purple with neon accents and contributions of bright color from previous levels.
Twilight Town is, as its name suggests, constantly dyed red by sunset; the architecture itself contributes teal accents.
The exterior of Castle Oblivion is bronze and teal, starkly contrasting the White Void Rooms that populate its interior.
Destiny Island is possibly justified, being a tropical island paradise.
Mirage Arena is similar to Space Paranoids in this regard.
Final Fantasy IV has the underworld with Amber Lava, Red in the areas where the earth and lava meet,Black in the earth, Dark Red rocks and Caves and Dark Purple cave walls. And don't even get me started about Sylph Cave in comparison to Passage of Eidolons and Feymarch.
Final Fantasy V has the last floor of the rift which has Bright Blue Crystals, Navy Rocks, Azure Glyphs and Brown wooded trees with Teal leaves.
If you thought the TRON movies are bad? Tron 2.0 is worse. Bright colors everywhere, landscapes of purple and blue, a corrupted server with a Sickly Green Glow. The Internet looks like Vegas and Coruscant.
Eversion (HD especially) has World 1, World 2, World 5, World 6, World 7 and World 8. Heck the games worlds as a whole counts as this trope.
Phobos and Deimos are both gray with pale pink splotches.
Most asteroids are mostly shades of tan and gray.
Dwarf planet Ceres is a pale peach color with gray splotches.
Jupiter is surrounded by orange, gray, and white bands, with a large red storm on its southern hemisphere.
Its five largest moons are also colorful: Amalthea is a bright red, Io is orange, yellow, and green, Europa is tan and white, Ganymede is purplish-gray, and Callisto is sepia-toned. All of its smaller moons are mostly gray.
Saturn is surrounded by tan, blue, and gray bands, with shimmering white rings going around it.
Its largest moon Titan is surrounded by thick yellow clouds and a dark blue haze, which covers its orange and brown surface. Its smaller moons are mostly grayish (Pan, Atlas, Prometheus, Epimetheus, Telesto, Calypso, and Dione being lighter gray, Pandora, Janus, Mimas, Tethys, Helene, and Phoebe being darker gray), but Enceladus is white, Rhea is steel-blue, Hyperion is tan, and Iapetus is dark gray on one side and light gray on the other.
Uranus is predominantly a pale blue-green color, with slightly yellowish poles.
Its moons are also varying shades of gray (Puck and Titania being a lighter gray, and Umbriel being a darker gray) and brown (Ariel is light brown, Oberon is dark brown), but Miranda is almost pinkish.
Neptune is almost completely blue in color, with white clouds, and a darker blue storm also on its southern hemisphere.
Its largest moon Triton is mostly light blue and purple in color, but its other moons, such as Larissa, Proteus, and Nereid, are mostly grayish.
Most comets are grayish, with white dust tails and blue gas tails.
Most Kuiper Belt objects are predominantly dark blues and grays.
Dwarf planet Pluto is mostly gray with bright orange splotches, while its largest moon Charon is a bluish-gray color.
Other dwarf planets in the Kuiper Belt are also in distinguishable colors: Haumea is a pale blue with red splotches, Makemake is mostly pinkish-brown, and Eris is almost white in color.
Sedna, the furthest object in our Solar System is mainly dark red.
Most planets outside our Solar System will probably have a greater range in colors: Desert planets are mostly yellow, ocean planets are mostly blue, jungle planets are mostly green, ice planets are mostly white, poison planets are mostly purple, volcanic planets are mostly bright red, rock planets are mostly gray, gas giant planets are mostly multicolored, etc.
Depending on which chemical dominates the most, most nebulae are also brightly-colored. This is also true with most galaxies. The Milky Way is mostly sky blue with a pale yellow center, the LMC and SMC are bluish-gray, the Andromeda Galaxy is dark blue with a purple center, the Triangulum Galaxy is aqua green with an orange center, while all the other galaxies are either colored lavender with a pink center or maroon with a yellow center.