Select two-three hot pigments-such as : yellow, orange or red. Creat a painting with all hot colors. Use a little bit of cool (such as blue, green or purple) for relief.
Try this again with cool colors such as: blues, greys, purples and greens. Selcect two-three. Add a bit of warm/hot colors to make impact. Compare the two different art works. Is there harmony or contrast? This is another way to get inspired to foster your creativity.