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.
Gray and pink are the two colors that go well together. The neutral gray makes for an elegant understated background for various pinks shades from loud candy pink to muted grayish pinks. While bright pinks are more energetic they are best used in high traffic areas like living room or hallway.