Less important elements should be less saturated, have less value and hue contrast against the background, and should also be smaller, or indented. Desaturated, neutral colors tend to recede.

• 与背景的颜色及其值的对比也不要太强烈，尺寸要小些或者向内缩进。 不饱和及中性颜色则可以用在不重要的元素上。