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| − | '''RGB''' (Red, Green, Blue) is a common way of representing colour in a digital image. The colour of each [[pixel]] is represented by three numbers, being the amount of red, green and blue light making up that colour. These are commonly 8-bit binary numbers, and so range between 0 and 255 when written in decimal (or x00 and xFF in Hexadecimal)- as seen in colour selectors in photo processing programs. | + | {{glossary}} |
| − | This leads to the common colour depth of 24 bits.
| + | '''R'''ed, '''G'''reen, and '''B'''lue are the primary additive colours in [[colour reproduction]]. A light beam made up of the three colours in equal intensity appears white. |
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| − | There are alternatives to RGB, such as [[CMYK]].
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| − | RGB is the most common way to represent colours in digital image files; GIF files use RGB in their indexed colour table, and formats such as [[JPEG]] and [[TIFF]] have RGB as the most popular option.
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| − | RGB is also a common way to connect computer monitors, where colour is represented by three separate analogue signals - and the computer hardware will often use RGB for colour representation.
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| − | [[Category: Digital]] | |
Latest revision as of 13:26, 23 November 2013
Red, Green, and Blue are the primary additive colours in colour reproduction. A light beam made up of the three colours in equal intensity appears white.
