Strategy: Use warm bright red above cooler deep raisin.
Reds are a classic choice for enlivening a dining room or adding coziness to a library, and either of these shades could easily fill the bill. Put them together to get double the effect—and a conversation starter. In this first-floor study, orangey Million Dollar Red upper walls with deep, blue-tinted Raisin Torte below exaggerate the warm and cool tones of each. Crisp borders of Super White semigloss allow colors to shine singly as well as paired.
When painting different colors in adjacent rooms, keep the trim white for continuity.