Some common blue shades include navy blue, royal blue, sky blue, baby blue, and teal. Within each table, red increases from left to right, and green increases from top to bottom, in steps of 33 (hex).īlue increases from the first table to the last, in steps of 33 (hex).Shades of blue can evoke different emotions and have distinct meanings, depending on their tone and intensity. Below are six tables showing all of the 216 "web safe" colors, just to show you a range of colors compared to their hex values. The web safe colors use only the hex values 00, 33, 66, 99, CC, and FF when making color combinations. To avoid problems for older machines and different system color palettes, early Web designers usually limited their color choices to the 216 "web safe colors" which would display more or less the same on all systems. Even worse, different computer systems (PC, Mac, UNIX workstations) don't even use the same 256 colors in their "color palettes," so you couldn't be sure what your color will be shifted to. But years ago, many computers were limited to displaying "8-bit color" and could only show 256 possible colors. Nowadays, computers/monitors can display thousands or millions of colors, so the concept of "Web safe colors" is no longer important. Older versions of HTML didn't care if you left it out, but some browsers are stricter about this, and f you forget the # sign the browser may not display the color you requested. NOTE! Always remember to put in the # symbol when specifying color numbers. #6 B 5 is the same as: #66 BB 55 and is THIS COLOR. #F F 0 is the same as: #FF FF 00 and is YELLOW. #0 0 F is the same as: #00 00 FF and is BLUE. This is a shortcut for colors where the red, green, and blue values consist of two identical digits. HTML also recognizes color numbers that contain just three hexidecimal digits. Note that is is OK to use either uppercase or lowercase letters for the base-16 digits A, B, C, D, E, F. #55 6B 2F has lower values for all colors, giving a darker result: DARKOLIVEGREEN. (no, I don't know who thought up the color names.) #FF EF D5 has high values for all colors, giving a light result: PAPAYAWHIP. #FF FF FF means full FF amounts of Red, Green, and Blue. #FF FF 00 means FF worth of Red and Green, and Blue. #00 00 FF means no Red or Green, and FF worth of Blue. #FF 00 00 means FF worth of Red, and no Green or Blue. This gives over 16 million possible colors. Each two digit hex pair can have a value from 00 to FF (FF=256 in base 10). The six digit color number is broken into three groups of two digits which specify the amount of Red, Green, and Blue in the color (using additive color.the way colored lights mix, not the way color pigments mix). a color number, such as "#FF0000", "#FFFFFF" (those are red and white).Ĭolor numbers are specified using hexadecimal (base 16) values.HTML used to recognize 16 color names ("black", "white", "gray", "silver", "maroon", "red", "purple", "fushsia", "green", "lime", "olive", "yellow", "navy", "blue", "teal", and "aqua"), but new browsers can recognize 147 CSS3 color names.
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