Web Safe Colors
By a color depth of under then 24 bits not all 16777216 colors can be represented correctly. If a color is not portrayable it must be simulated by approximated values or dithered ugly. By low color depth browsers use a specific color table on the basis of they find approximated values or raster. This table is different by the browsers and depends from the operating system and kind of computer too. Alltogether there are 216 colors that are available in every color table. They will nowhere be screened or distorted. These are the web safe colors.
Notes
- Web safe are all colors those RGB values are divisible by 51. Thus the following values are possible: 0, 51, 102, 153, 204 and 255. Or in hex: 0, 33, 66, 99, CC and FF.
- Although there are few like that who works with low color depth, it has become accepted to use these colors only for the creation of the site. You do not need to pay attention on the web safety of the photos. The browsers are able to dither pictures with better quality in the most cases.
