http://merumaga.yahoo.co.jp/Backnumber/5923/53470/p/1
因みに、カラーとはギリシャ語で「歓喜」という意味で、χαραと表記します。英語のColorではありません。
Which I think says it's not Color, but that χαρα (or whatever romanization is appropriate), which seems to mean something as joy or delight.
Is this new maiking breakthrough material for ANN?
EDIT: subject got screwed