Good color choices should never be taken for granted in web design. A bad color selection or combination can have the same negative effective as poorly layed-out content or can create the same frustration as an excessively slow loading page. So, underestimate the power of color at your own peril.
Even with a myriad of colors, the chances of stumbling into good a eye-pleasing color by mixing two or more together are very very slim.
To help make a good color selection or arrangement, the situations when two colors are in a harmonious combination have been split into six color categories or schemes. They are: Monochromatic, Analogous, Complementary, Split Complementary, Triadic and Tetradic.
In this post we will take a look at each, and highlight some effective examples of there use within web design.

1. Monochromatic Color Harmony

As the name dictates, this calming color scheme uses only a single color as a base and allows its various shades, tints and tones to be included with in its palette.

← A Monochromatic Color Harmony or Scheme

Using monochromatic harmony expresses unity and and instills elegance, while at the same time is neither powerful or bold enough to to allow you to focus on any particular aspect of the design (due to its lack of color contrast).

Here are some beautiful examples of Monochromatic Color Schemes within web design:

1.1 Loewy Design

1.2 TagDiri

1.3 WilsonMiner

1.4 nclud

2. Analogous Color Harmony

Analogous color schemes are basically made up of colors that are directly next to each other on the 12 point color wheel.

← An Analogous Color Harmony or Scheme

Compared with the monochromatic scheme (above), the analogous offers more nuances, but suffers from the same defect – a lack of color contrast.
To use this scheme effectively, you have to choose one dominant color, a second to support and lastly a third color, that is used as the accent, which will give your web design a dramatic impact.
It is also recommended not to use too many hues and avoid the combination of cool and warm colors.

Here are some examples of Analogous Color Schemes within web design:

2.1 ustvarjalko

2.2 Ecoki

2.3 Outlaw Design Blog

2.4 Whooray Records

3. Complementary Color Harmony

With complementary color schemes we finally have recipe for good color contrast.

← A Complementary Color Harmony or Scheme

This scheme basically uses two colors located on opposite ends of the color wheel (such as, red is opposite of green and orange is opposite blue…meaning they are complementary…).

Due to the huge effect and power of the contrast, web designers will choose one domintant color (usually the background) and another to highlight the most important elements of the page (the content).
Any shade or tint of a color can be used in a complementary color scheme, but desaturated colors should not be used, as you will lose positive contrast and the sites overall impact will greatly decrease.
Such as red is opposite of green…meaning they are complementary.

Here are some examples of Complementary Color Schemes within web designs:

3.1 Gobierno Federal Mexico

3.2 Douglas Menezes

3.3 Frenzy Labs

3.4 Blogger BakeOff

4. Split Complementary Color Harmony

To ease the contrast of the two colors from the complementary scheme (see above), split complementary schemes use a combination of three colors.

← A Split Complementary Color Scheme

They are formed by combining a primary color from the color wheel with colors on each side of its complement. (Or, in layman’s terms, in the formation of the letter Y).

Here are some examples of Split Complementary Color Schemes within web designs:

4.1 Apps Templates

4.2 PSD Chimp

4.3 Nuances Communication

5. Triadic and Tetradic Color Harmony

Triadic Color Scheme
As its name suggests, triadic uses the power of three colors which are situated at 120 degrees from each other (these points are determined by an equilateral triangle) on the 12 step color wheel. There color harmonies tend to be bold and vibrant, even if you choose to use pale or unsaturated versions of the original hue.

← A Triadic Color Scheme or Harmony

This harmony could be considered your best color scheme option, with its effective contrast. You could use one color for a background and the two remaining for content and the highlighted areas. The colors should be carefully balanced – let one color dominate and use the two others for accent.

Tetradic Color Scheme
Yes, you have guessed it, tetradic uses a combination of four colors, determined by a square or rectangle placed over the color wheel. To create different harmonies, the square or rectangle can be rotated, which will result in the creation of a new harmonious tetradic schemes.

← A Tetradic Color Scheme or Harmony

In a logical deduction this scheme has the greatest number of combinations, it is based on two complementary pairs. This can be a double-edged sword though – it does offer the biggest option of color, but can give problems for good harmony. Be very carefully when choosing these colors.

Both of these (triadic and tetradic) color combinations are difficult to interpret, most websites will use a combination of four colors based on these color schemes, making it difficult to highlight with examples. Throw a stick into the the deep recesses of the web, and the chances are you will wind up hitting a site with either a tiadic or a tetradic color scheme.

原文链接：http://speckyboy.com/2010/05/19/beginners-guide-to-using-the-power-of-color-in-web-design/