Contrast is an important part of Web design because it often means the difference between a page that looks great and a page that is illegible or painful to look at. But sometimes it can be hard to decide what colors work well in contrast to others. This table should help show you different colors and how they contrast or don't contrast well as foreground and background colors.
One thing you should note is that contrast is more than just how bright a color is compared to the background. As you can see, some of these colors are very bright and show up vibrantly on the background color - such as blue on black. But I labeled it as having a poor contrast, because while it it bright, the colors make the text difficult to read. If you were to create a page in all blue text on a black background, your readers would have eyestrain very quickly.Background Red Orange Yellow Green Blue Violet Black White Gray Foreground Red Poor Good Poor Poor Poor Good Good Poor Orange Poor Poor Poor Poor Poor Good Poor Poor Yellow Good Good Poor Good Poor Good Poor Good Green Poor Poor Poor Good Poor Good Poor Good Blue Poor Poor Good Good Poor Poor Good Poor Violet Poor Poor Good Poor Poor Good Good Poor Black Poor Good Good Good Poor Good Good Poor White Good Good Poor Poor Good Good Good Good Gray Poor Poor Good Good Poor Poor Poor Good