Change 11 items fast, compare 2 pages side by side, make style sheet. Hex or decimal numbers, different fonts, different sizes. There are LOTS of color pickers out there, many of them are slow, most only show one color at a time. Colors on web pages do not exist alone. How they look together is very important. Over 29,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000 color combinations.