I once spent almost three years of my life documenting the landscape with Benjamin Moore paint chips. There was just nothing better I could see to do with my time. I had the Pacific, a full-time job, and I love telling stories.
They say color is the emotion of art. Well, I say to the color-blind, value is just as important. I made it my mission to perceive, find, and appreciate the most subtle of colors over those three years. If it looked gray, I knew it really wasn't. Gray is always a shade of some color, albeit the most imperceivable mauve. However, take a look at a sunset, and you will find there is no other color that will do.
Nature is as full of subtlety as she is of bright color. Document your observations. Thank you to all of the paint companies that make these chips available at hardware and home improvement retailers.