These are the 11 best dark blue paint colors that interior designers use time and time again in their projects.

For inspiration, search for jewel tone color names like emerald ... and feels very classic and sophisticated. For a deep sapphire blue wall color, there are some alluring choices, like Marine ...

A capped 2-liter plastic bottle containing a clear, colorless liquid is shaken. The liquid turns a deep blue color. At rest, the liquid returns to colorless. The cycle can be repeated many times. Ask ...