Start with Powder Blue on the walls and the whole room exhales. It is a pale, slightly grayed blue that reads calm rather than cold, so it feels restful at bedtime and still fresh in morning light. In a bedroom that softness is the whole point — it wraps the space in a quiet, sky-like haze without ever feeling chilly or stark.
To keep it warm, edge the windows, doors, and baseboards in Warm Cream. That gentle, buttery off-white frames the blue and stops it from drifting too cool. Then bring in Steel Blue as your accent — a deep, smoky blue for a headboard, a bench, or a single painted nightstand — to give the airy palette a little weight and anchor it. Powder Blue on the walls, Warm Cream on the trim, and Steel Blue saved for one or two pieces you want to stand out.