My 5-year-old son did a little experimenting with color the other day. Using a few tubes of paint - red, blue, yellow - he diligently recorded the colors he created: purple, orange, green, aqua, grey...
He had a lot of fun...so I thought I'd pass along a tip if you like playing with color, too.
There are a lot of online tools out there where you can check out colors and color combinations in virtual rooms before you head to the paint store. (Never pick a specific shade strictly by using this method. Your computer monitor may not be showing the exact, true color. But this is a great jumping-off point.)
Give them a try:
All of the fun of playing with paint...none of the scraping it off the tiled kitchen floor later.