the varied visual sensation produced by rays of light (and different from looking at black and white only)
pigment, shade
Cases of word usage
1) bright with colour (aglow)
2) of (the colour of) ashes; pale (ashen)
3) bright-blue colour (azure)
4) without colour or lights (black)
5) a drop of liquid e.g. plant, colour (blob)
6) having, of, the colour blue (blue)
7) a little blue in colour (bluish)
8) like brass in colour (brassy)
9) the colour of coffee, suntan etc (brown)
10) a small lizard with a long tongue whose colour changes according to its background (chameleon)