Am 29.01.2013 um 09:11 schrieb Devendra Ghate
I have been going through the concepts underlying pallet.
I would like to define three basic colors in RGB. Then use various shades and tints of these basic three colors through out the document.
Now the algorithm for getting various shades for RGB scheme is:
Darker shades: Multiply each component by 1/4, 1/2, 3/4, etc. of its previous value, depending on how dark the color should be.
Lighter tints: Calculate (1 - previous value), multiply that by 1/4, 1/2, 3/4, etc. and add that to the previous value.
What I would like is a macro that is fed a color name and should define 3 shades above and below it.
\definecolor[test-0][r=0.8,g=0.2,b=0.4] \definecolor[test-1][1.00(test-0)] \definecolor[test-2][0.75(test-0)] \definecolor[test-3][0.50(test-0)] \definecolor[test-4][0.25(test-0)] \starttext \startlines \color[test-1]{1.00} \color[test-2]{0.75} \color[test-3]{0.50} \color[test-4]{0.25} \stoplines \stoptext Wolfgang