One colour is not a colour when there is no colour next to it to support it, to fight it, or challenge it. These 11 colours are developed and selected to go well together, and to bring out the best in each other. Please be bold. Look for contrast, dark next to light, colours from the opposite side of the spectrum of each other. Put a fully saturated colour next to a pastel, or a toned-down colour to bring out their true power.