There is little theoretical or empirical data to support the notion that colour influences our emotions.
But the truth is, you only have to experience the pure joy a sky-burst of colour at sunrise evokes, or the peace the soothing blues of a rolling sea bring to your soul, to know it’s true. Colours affect emotion. This is driven by the brightness, shade, tint or tone you’re experiencing and whether it’s a cool or warm colour. Warm colours like orange, red and yellow bring out feelings of optimism and happiness, while cool colours like green, blue and purple are generally seen as calming and soothing.