Color terminology

R
Posted By
ronviers
Feb 10, 2006
Views
420
Replies
2
Status
Closed
I got out my color wheel book like you said, but I am having a little trouble wiht terminology. The author, Hilary Paige, uses the terms desaturated, saturated, unsaturated and neutral to describe the movement of colors from the outside of the color wheel (desaturated) to the center (neutral). At least I think that is how it works. I hope someone will tell me if I am mixed up about that.
She defines saturation as "the amount of color perceived when compared to the amount of black or white". In a recent post the terms ‘tint’ and ‘shade’ were used. They are not mentioned in my book but Wikipedia, here:
http://en.wikipedia.org/wiki/Color_wheel
defines ‘tints’ as versions of color produced by adding white and ‘shades’ as color produced by adding black.
Are these terms talking about the same thing? Is it that saturation is used when talking about the pigment color wheel and tint/shade is used to talk about the contrast color wheel?
The final question I have is about the term ‘value’, obviously it has to be different than saturation but I don’t see how. Can someone explain how value differs from saturation?

TIA,
Ron

Thanks for the help on hues.

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GH
Gernot Hoffmann
Feb 10, 2006
Ron,

color spaces are threedimensional.
Double cone:
HLS = Hue, Lightness,Saturation
Single cone:
HSV = Hue, Saturation, Value
HSB = Hue, Saturation, Brightness
HSV = HSB. Value=Brightness

A ‘color wheel’ is a mostly a top view onto one of
the cones.

In these cone models the Saturation is the relative
radius. On the surface the saturation is always 1,
though this is not reasonable in light and dark regions.

In real life your quoted definition
"the amount of color perceived when compared to the amount of black or white"
is OK, but this cannot be quantified.

‘Tint’ and ‘shade’ is not used in color science.

Some illustrations are here:
http://www.fho-emden.de/~hoffmann/hlscone03052001.pdf

Best regards –Gernot Hoffmann
P
Pat
Feb 10, 2006
I don’t know if tint and shade are used in color space, but they are used for other color purposes. A tint is a pigment with white added to it. A tone is a pigment with black added to it. There is also a "tone", which is added gray.

For example, if you want pink paint, you take red pigment and white pigment.

In the end, it’s just another way of decribing the same things.

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