Green isn't GREEN!

Did you know that green isn't really GREEN! I wanted to know how many shades of green there are. So now that I consider myself the "WHYS GAL," I looked it up and discovered the most amazing thing. Chlorophyll absorbs red and blue, which appears green to our eyes. The more chlorophyll a plant has determines what shade of green we see! CAN YOU BELIEVE IT? Especially to all my artist friends. So, does that mean a (green) dollar bill is really a thousand dollar bill? I'll look into it and let you know...