I got to answer this question by tomorrow please HELP "determine which of two colors (red or green) is darker and lighter despite despite different hue and different values"

Try this site first http://home.att.net/~RTRUSCIO/QUESTIONS.htm

If you miss the 'paint' link at the bottom of the page from the above address,the link is http://home.att.net/~RTRUSCIO/ARTPAINT.htm

If those are no good,just type your question into a search engine exactly as you have asked on this forum.

All the best,
Nez.