# Documentation Talk:Reference Section 7

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## 1.3 colors.inc

The term "color model" should be used here instead of "color space". "Color space" implies a device-independent system like the Munsell system that produces identical results regardless of device or output. "Color model" is more limited in that it means a different numerical/mathematical representation of a color space. I.e HSL and HSV are alternate representations of RGB, whether it's sRGB or Adobe RGB or whatever. SharkD 20:08, 25 June 2010 (UTC)

- Hmmm ... I'm comfortable with whats there. Just for the heck of it I did a quick search of the two terms in an identical question
*model*returned 72,400 hits, while*space*returned 169,00 hits ... not exactly scientific. A quick look at the lead articles from both searches showed that they discuss virtually the same topics. Could this be a case of semantics? --jholsenback 23:40, 25 June 2010 (UTC)- Wikipedia:
*"A color model is an abstract mathematical model describing the way colors can be represented as tuples of numbers, typically as three or four values or color components (e.g. RGB and CMYK are color models). However, a color model with no associated mapping function to an absolute color space is a more or less arbitrary color system with no connection to any globally-understood system of color interpretation."*In short: a color model is math, a color space is physics. SharkD 03:38, 26 June 2010 (UTC)

- Wikipedia:

## 1.3.2 Color macros

Should make a note of the fact that the HSL and HSV conversion macros assume values within the range 0 to 360 instead of 0 to 1 for Hue. Also, mention the range of the other parameters. SharkD 14:22, 27 June 2010 (UTC)

- isn't that what this is saying? Can't recall when, but there was a recent NG discussion about this and that is what was agreed upon --jholsenback 14:32, 27 June 2010 (UTC)

**Note:** The Hue parameter is given in degrees.