You might have sidebars throughout your site that use a cyan background, and you want to have your links contrast well with the sidebar background.

站点上可能到处都有使用青色背景的边栏，因此希望其中的链接能够在边栏背景上看得清楚。

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The first consideration is contrast: links have to be dark (or light) enough to contrast with the background color.

第一要义就是差异(对比)：链接要足够暗(或者亮)以和背景色相对照。

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Use good contrast with the background to make your text easy to read.

利用好的背景对比色可使你的演讲更易读。

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Beyond the sleek design and processing power, VIZIO continues to leverage its HDTV background with brilliant picture quality, high contrast and wider viewing angles, a staple of the Touch PCs.

ENGADGET: Vizio brings pricing and release information to spring line of laptops and desktops

It is part of his efforts to contrast his own blue-collar roots with Romney's personal wealth and Wall Street background.

CNN: Santorum benefits from staying in GOP race