Japanese color names

Thanks to a colorful cheat sheet made by blogger NihongoUp, we've been able to learn a number of new words for colors (some of which I didn't even know the English names for, like chartreuse, which is halfway between yellow and green).
Along the way, there were also some new kanji to be learned, which help to memorize the color names. I'll skip 茶色, which I already explained here. As for the rest:

Kana	Kanji	Literal meaning	Actual meaning
だいだいいろ	橙色	Color of bitter orange	deep orange
ももいろ	桃色	Color of a peach	peach
みずいろ	水色	Color of water	light blue
わかくさいろ	若草色	Color of fresh grass	chartreuse (yellow-green)
はいいろ	灰色	Color of ashes	grey

Note how the kanji for 'ashes' clearly contains the kanji for 'fire', 火.
Note also how both 'peach' and 'bitter orange' have the same radical on the left, a compressed version of 木, which means 'tree'. In fact, many words that have to do with plants, fruits, or things botanical, have this radical in them.