http://www.ms.net.cn/daohang/gongyi/scx/
http://www.tingko.net/School/WebColor/23491.html
http://www.secaixue.com/
http://www.cmbook.com.cn/product.asp?id=819
http://1.book.baidu.com/chaoxing/m0/w2/h98/4806bf2b5a.1.html
http://www.opalstudio.net/color/colordapei.htm