Color Palete NUMBERS for a black light.

JS
Posted By
Jonah Schwartz
Aug 31, 2003
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516
Replies
6
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Closed
White is 255, 255, 255
Black is 0, 0, 0
and so on.

16 million colors.

Does anyone know the numbers for the color of black light?
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black color light number

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Alan D-W
Aug 31, 2003
"Jonah Schwartz" wrote in message
White is 255, 255, 255
Black is 0, 0, 0
and so on.

16 million colors.

Does anyone know the numbers for the color of black light?

Not sure I know what you mean, but if it’s one of those tubes seen in nightclubs it’s going to be a rich purple isn’t ti?
Alan
W
whozit
Aug 31, 2003
It won’t be a single color, since to render it, you will be displaying a dark bluish purple, with a lighter ‘glow’ around your rendered ‘light source’. Check here:
<http://science.howstuffworks.com/black-light1.htm> <http://members.shaw.ca/jimht03/light.html>
L
lynoz
Sep 1, 2003
167, 0, 255
KC
Kevin Connery
Sep 2, 2003
Any particular RGB color space?
P
Phosphor
Sep 2, 2003
Hi, Kevin!

Do you think that the values would be So different following the color space?
KC
Kevin Connery
Sep 2, 2003
Do you think that the values would be So different following the color space?

Yup.

Different gamma settings will give different color numbers for the brightness values, and different specified primarys settings will give different RGB triplets for any given number. Even gray values can be inconsistent, if the colorspace is not gray-balanced, but each colorspace has a DIFFERENT triplet for different colors.

A medium-dark blue that could be part of the glow for a blacklight showed values of

49,143,191 in Adobe RGB(1998)
0,145,194 in sRGB
82,119,173 in ProPhoto RGB
0,127,183 in ColorMatch

All of which are gray-balanced working spaces, and and relatively commonly used working spaces in Photoshop. Those numbers LOOK very much the same, but are only useful when the color space is specified.

So, yes, I do think they’re going to be SO different.

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