The secret to choosing the right cool colors for your space is identifying the undertones of each color. A cool color isn’t only a color that has gray tones. Cool colors can have a blue or green cast, which makes them more challenging to use. Sampling paint colors is your secret weapon in choosing the right cool colors. Unlike warm colors, the lack of lighting in a room can make you miss the undertone, which might be offputting in full light. It is essential to sample the colors with full lighting or at the height of peak sun for the room. 

Color Family: Cool colors Complementary Colors: Warm colors; earth-tones and forest greensPairs Well With: Cool tones go well with bright white, other cool colors, and warm color accents for contrastMood: Calm, relaxed, and refreshingWhere to Use: Most popular in bedrooms and bathrooms; also works in kitchens, exteriors, exercise or meditation rooms

Here are the best cool paint ideas for your home from Sherwin-Williams. Software is stunning when paired with a medium-tone blue or aqua, an accent of creamy white, and dark brown. For a calming space, think blue walls, a Software accent wall, a creamy white trim, and rich brown wood floors.