Picture of Summertime Madness coloring page

Summertime Madness

by Angela R.

Shades of Everything

Humans can distinguish about 10 million different colors with the help of lighting. (Imagine having that many colors to choose from when coloring!) Lighting obviously plays a big part in being able to distinguish one shade of blue from the next, but interestingly, grey is the hardest color identify in shades.