I prepared a little color overview with colors in TeX.

If you need it, here are the PDF-Files and their TeX-Sources.

PS-Tricks

• Farben_PSTricks_RGB.pdf
  Created via LaTeX, dvips and ps2pdf
  
• Farben_PSTricks_RGB.tex

Color.sty

RGB-Combinations

• Farben_Color_RGB.pdf
• Farben_Color_RGB.tex

CMYK-Combinations

• Farben_Color_CMYK.pdf
• Farben_Color_CMYK.tex

Want more help?

• http://oregonstate.edu/~peterseb/tex/samples/color-package.html

xColor.sty

RGB-Kombinationen

• Farben_XColor_RGB.pdf
• Farben_XColor_RGB.tex

CMYK-Kombinationen

• Farben_XColor_CMYK.pdf
• Farben_XColor_CMYK.tex