Color scheme of the [useful tools] Web site. Also learning the color scheme

When we decide color combination on web site, it is said that three basic elements should be allocated 70% of main color, 25% of sub-color and 5 % of accent color. It is believe that color scheme will be easily finished beautifully due to observing the balance rule. However, selecting colors are sometimes tricky and annoying to match the concept in web site. Such time, this web site will be your help as a reference. It provides Japanese color or Western-style color dictionary, color mixing, analysis and so on. Web directors and designers will be good reference. Student can also be used to study the color scheme!
http://www.colordic.org/
http://creators-manual.com/main-sub-accent/
＊Japanese site