Talk:Cobalt blue

message: Where do the color codes come from? I haven't been able to find any reliable source on the Web. Yes, I found pages claiming that cobalt blue is such and such in RGB, but no evidence to back that up. —The preceding unsigned comment was added by 213.157.164.98 (talk • contribs) .
: There's no real reliable source for such, as cobalt blue cannot AFAIK be reproduced by a computer display.  --jacobolus (t) 21:36, 20 September 2007 (UTC)

message: This article should focus on cobalt blue as a pigment, not as a color.  --jacobolus (t) 21:36, 20 September 2007 (UTC)
thread_title:  Focus on pigment, not color 

message: Reference is in their site's fps. Sonic was also coloured the same to match the logo. Put it first then Nintendo DS because of dating.  —Preceding unsigned comment added by 85.240.48.162 (talk) 17:47, 28 July 2008 (UTC)
thread_title:  Added Sega's logo 

message: The header paragraph describes it as "slightly desaturated". The colour co-ords on the right hand boxout show it as having a Saturation value (under HSV) of 100%, and the RGB values bear this out as one of them is 0% (making it fully saturated). Which is correct, then?
Also, though it wasn't my addition, I couldn't help noticing what the above contributor wrote, and looking for the referenced entry in the history. Not sure why one of the world's most recognisable game characters is less notable than the opinions of some painter i've never heard of on the nowadays pretty moot subject of cobalt vs ultramarine? (The Sega logo and DS, less important I suppose, otherwise you could go on to list any number of logos using the colour and devices/items that are sold with that hue casing) 193.63.174.210 (talk) 17:26, 4 December 2008 (UTC)
thread_title:  contradiction 

message: Myself, I find terms like "slightly desaturated" and "stoichiometric" to be bringing in obscurity just for the sake of obscurity.  Why not just be clear and direct about what matters about the colour, for instance that it is very stable.  Some history would be nice, famous uses, etc.  Good point about pigment versus colour.  CheersBillyshiverstick (talk) 03:03, 29 June 2012 (UTC)
thread_title: obscure terms

message: The spectrum in the graph shows a spectrometer reading from the brooch shown in the picture gallery. The colour shown in the image is incorrect, as it is coded by the camera as pure blue. The spectral power distribution clearly shows that cobalt blue is a kind of spectral purple (conventionally called violet), with a dominant wavelength of 456nm, calculated from CIE XYZ. Individuals with good colour vision will see this as blue with a degree of purple. The graph shows that the sample measured has a peak reflectance of about 35% of light in the lower wavelengths. This may be slightly higher as the same has a degree of specular reflectance. This gives it a glossy appearance, which can confuse the spectrometer to some degree. The graph shows the spectrometer sample 2x to illustrate what higher reflectance would look like. This would simulate looking at the sample under bright light. The measurement was taken with an xrite i1pro spectrometer in high resolution mode, which measures the spectrum at 3.3nm intervals from 350 to 740nm. TxB (talk) 14:19, 29 April 2018 (UTC)
thread_title:  Spectrum 

message: An entry in List of colors: A–F contained a link to this page.
The entry is :
* Light cobalt blue
I don't see any evidence that this color is discussed in this article and plan to delete it from the list per this discussion: Talk:List_of_colors#New_approach_to_review_of_entries
If someone decides that this color should have a section in this article and it is added, I would appreciate a ping.--S Philbrick(Talk) 14:52, 23 August 2018 (UTC)
thread_title:  Possible removal from list