Colors are usually divided into three primary colors red, yellow and blue. These are then accented by three secondary colors purple, green, and orange. The secondary colors can be create by combining the primary colors. Reds convey charged emotions like anger, love, or passion. It is the flow of life through our veins.
People notice red first.
Yellows are simulating and can act like a warning. Lemon yellow is associated with sour. Like the sun yellows are uncomfortable to look at for an extended period of time. Lime, Leaf Green, Sea Green, Emerald, and Teal. The human eye is most sensitive to greens.