The definition of impromptu is something done without advance thought or without a plan. When everyone gets together and decides to throw a party at the spur of the moment, this is an example of animpromptu party. impromptu. an impromptu speech, performance, etc. impromptu.
If you prefer lighter color combinations, then instead of these three, go in for pink, light blue and pale yellow color combinations. Contrasting Color Combinations. By bringing together colors in different color categories, many interesting color combinations can be made.
Planning a successful color combination begins with the investigation, and understanding, of color relationships. Using a color wheel and a template, the relationships between colors are easy to identify. Monochromatic Relationship Colors that are shade or tint variations of the same hue. Complementary Relationship Those colors across from each other on a color wheel.