Triadic color scheme : the colors red, yellow, and blue make a Triadic color scheme. This room is perfectly balanced with blue using red using and yellow as an accent color. This is one of my favorite Triadic color schemed rooms.
This is a great example from Better Homes and Gardens of how bright pops of color in complementary hues can really make an outdoor space fun and beautiful. This looks like a pretty simply desk and inexpensive furniture -- a great DIY project!