[Pedja]

http://www.lethalpenguin.net/design/index.php
http://www.ficml.org/jemimap/style/color/index.php

Ovdeima ziv krug boja: http://www.ficml.org/jemimap/style/color/wheel.html i izgleda da se stvarno komplementarne boje mogu diobiti prostim invertovanjem.

Evo ga algoritam za izracunavanje kontrastne boje.
http://juicystudio.com/services/colourcontrast.php

i sta W3 kaze o tome: http://www.w3.org/TR/AERT#color-contrast

I gomila color picker-a
http://web-graphics.com/mtarchive/000972.php