They can also reference exact colors in photo editing programs like Adobe Photoshop.
These color codes can change the color of the background, text, and tables on a web page. There are 16,777,216 possible HTML color codes, and all are visible on a 24-bit display. For example, in the color red, the color code is #FF0000, which is '255' red, '0' green, and '0' blue.
HTML color codes are hexadecimal triplets representing the colors red, green, and blue (#RRGGBB).
