There little that is more difficult than matching the colors to each other within a site, if you do not have right tools to do so.
As not only in web design colors the viewer will always achieve a certain effect, one must pay close attention to choosing the right colors (= color composition, color composition). This one uses the tools available in the - unfortunately, most expensive - graphics programs, or you use this tool: colorscheme designer
The color scheme designer has several options for low-contrast, complementary, and tertiary color scheme. So you can build your super color combinations for your web sites. Also you can see if light, medium, light or dark to read writings on the desired colors.
A great tool that you should remember you as a web designer!
