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Clashes between web and X11 colors in the CSS color scheme. The first versions of Mosaic and Netscape Navigator used the X11 colors as the basis for the web colors list, as both were originally X applications. The W3C specifications SVG and CSS level 3 module Color eventually adopted the X11 list with some changes.
This means that the list of colors found in X11 (e.g., in /usr/lib/X11/rgb.txt) should not directly be used to choose colors for the web. The list of web "X11 colors" from the CSS3 specification, along with their hexadecimal and decimal equivalents, is shown below. Compare the alphabetical lists in the W3C standards.
The W3C web color named green is darker than the color named green in X11, using the HTML color code #008000 as compared to the color code #00FF00 in X11. This lime versus green issue is one of the very few clashes between web and X11 colors in the CSS color scheme.
The web color light blue is part of the X11 color system, with a hue code of 194. This color is closer to cyan than to blue. Variations of this color are known as sky blue, baby blue, or angel blue. The first recorded use of "light blue" as a color term in English is in the year 1915.
The color purple, as defined in the X11 color names in 1987, is brighter and bluer than the HTML/CSS web color purple shown above as purple (HTML/CSS color). This is one of the very few clashes between web and X11 colors . This color can be called X11 purple . Veronica prostrata, for which the color veronica is named.
The method used for selecting the colours for various top-level pages, e.g. Main Page, Community Portal, Contents, and Help:Contents. The 3 colours are generated using the HSV colour space, then translated into RGB. Note: for layouts with no spacing between borders, use the darker border colour.
Download QR code; Wikidata item; Print/export ... Help. Web colors — The 16 standard colors of the web, in Cascading Style ... Color chart X11; Template:Colornames;
In contrast to the above examples, the list of X11 color names defines powderblue as a pale cyan shade, RGB(176,224,230). This is the colour displayed by a web browser if "color=powderblue" is specified in CSS.