Talk:Colorfulness

Issues with definitions involving lightness/brightness
The article says, "Saturation is the "colorfulness of an area judged in proportion to its brightness", and then links to the article Brightness. But then one of the image caption says, "7.5PB and 10BG Munsell hue pages of RGB colors, showing lines of uniform saturation (chroma in proportion to lightness) in red."

So is saturation proportional to lightness or to brightness? Or is it proportional to both? SharkD  &#9742;  07:12, 12 August 2018 (UTC)


 * Generally, lightness is a color appearance parameter, whereas brightness is is more of an absolute physical quantity related to luminance or luminous flux. But the two terms are sometimes confused. In this context and given the reference, I think lightness is the appropriate property. -- 12:21, 12 August 2018 (UTC)
 * The article also says, "In CIECAM02, saturation equals the square root of the colorfulness divided by the brightness" and "In CIELUV [and CIELAB], saturation is equal to the chroma normalized by the lightness"
 * So, does lightness/brightness depend on the color space? SharkD   &#9742;  13:59, 13 August 2018 (UTC)
 * Generally not; a color space is a gamut of colors independent of how one models them. However, a color model (e.g., HSL, CIELAB, etc.) defines its own coordinate system and may have its own definition of or transformation to a lightness parameter. -- 19:15, 13 August 2018 (UTC)
 * But CIELAB calls itself a color space. Anyway, I just lost interest in the topic. SharkD   &#9742;  01:41, 14 August 2018 (UTC)

Munsell saturation
Please see [https://en.wikipedia.org/wiki/Wikipedia_talk:WikiProject_Color#Formula_for_saturation_in_Munsell_system? this discussion]. I am not sure how saturation is derived in the Munsell system. &#x27A7; datumizer   &#9742;  00:40, 31 October 2019 (UTC)

Requested move 12 May 2021

 * The following is a closed discussion of a requested move. Please do not modify it. Subsequent comments should be made in a new section on the talk page. Editors desiring to contest the closing decision should consider a move review after discussing it on the closer's talk page. No further edits should be made to this discussion. 

The result of the move request was: not moved. (closed by non-admin page mover) ~ Aseleste  (t, e &#124; c, l) 13:15, 20 May 2021 (UTC)

Colorfulness → Colorfulness, chroma, and saturation – Lead claims that this article is about three slightly different, but overlapping, topics, with topics defined by the International Commission on Illumination. –LaundryPizza03 ( d c̄ ) 15:18, 12 May 2021 (UTC) The discussion above is closed. Please do not modify it. Subsequent comments should be made on the appropriate discussion page. No further edits should be made to this discussion.
 * Do not support - I get what you're saying, but the alternative you're suggesting is too verbose, IMO. I think "colorfulness" is fine; the layperson is less likely to be confused by the term. &#x27A7; datumizer   &#9742;  18:27, 12 May 2021 (UTC)
 * If the three concepts are really so different then this page should be split, otherwise the status quo is just fine. – John M Wolfson (talk • contribs) 18:29, 12 May 2021 (UTC)
 * The problem is that each color standard defines them in its own way. (Otherwise they would all agree and there would only be one standard.) Which is an important topic to address in the article! Not sure the article needs to be renamed, though. &#x27A7; datumizer   &#9742;  18:30, 12 May 2021 (UTC)
 * I reiterate my earlier point; if they're truly distinctly different, they deserve their own article, and if not the current title is just fine. – John M Wolfson (talk • contribs) 18:38, 12 May 2021 (UTC)
 * Oppose per argument. If the article needs to be moved, why not move it to colourfulness (with u). 36.65.44.100 (talk) 05:15, 13 May 2021 (UTC)
 * Oppose the proposed title is much less likely to be used as a search term. Chroma and saturation are also less likely search terms. If you already know to look for chroma, you probably already know what it is. Vexations (talk) 12:43, 13 May 2021 (UTC)
 * Oppose  Per above.  Also colorfulness is also a broader common use term. The proposed title equates it to two narrower and more specific terms which is confusing. The first sentence of the lead has this same problem and may be a part of what led to the proposal. North8000 (talk) 14:30, 13 May 2021 (UTC)
 * I'm not even sure that this article should exist, but definitely not under the proposed revised title. North8000 (talk) 12:44, 14 May 2021 (UTC)