This kitchen design in the Ypsilon style cabinet executed in a matte lacquer finish shows how successful a carefully considered application of color can create just the right balance. There are no rules as to what percentage of the elements in a room should be in color, it all depends on the balance of the neutrals in the space. As a rough guide, most likely it should not be less than 20% color, or more than 50% color-to neutral, due to the high impact of color.