Most of my Southeast Asian friends complain of the older generation, parents and/or grandparents, complaining about their darker skin, but my friends themselves see no problems with their color. I attribute this mainly to them not being bombarded by Fair and Lovely commercials and aunties to the degree here that they are back in Asia.
When it comes to Japan though it has more to do with certain stereotypes than it does color. For example, my boyfriend is African American, and while not too light, he is certainly not as dark as the majority of native African citizens we have met from Eastern and Central Sub-Saharan African countries. The Japanese students explain the guys from Nigeria, Congo, etc. would be glorified in Japan because of the stereotype that they will be well endowed.
I have actually talked to Chinese and Japanese students who have asked me specifically about that in regards to being curious over my boyfriend. Some have told me they intentionally seek out the African students to date. Yet when I ask if there parents would approve of them marrying a man from that area, they either say no or don't answer.
Regardless, there does seem to be a trend in the younger generations either moving away from this ideal or reinterpreting it with other cultural miscommunication or misconceptions.
"Psssh. Even if you could catch a miracle on a picture any person would probably delete it to make space for more porn." - Aszur