Re: [APML] OT. RGB value for 18% gray in sRGB color space

["Rick Kellogg" <rkellog1@twcny.rr.com>]

Joe,

Thanks for that link. I have a Mcbeth color chart and the "Neutral 5"
(bottom row, third from the right) is slightly brighter that my 18% gray
card, and from your link is 122,122,122 in sRGB.

Rick

----- Original Message -----
From: "Joe Pedit" <pedit@email.unc.edu>
To: "Discussion of Film Astrophotography" <astro-photo@seds.org>
Sent: Wednesday, June 16, 2004 4:43 PM
Subject: Re: [APML] OT. RGB value for 18% gray in sRGB color space


> Rick Kellogg wrote:
> > Does anyone know what the correct RGB value for 18% gray is, in sRGB
color
> > space?
> >
> > Rick Kellogg
>
>
> Bruce Lindbloom has sRGB values for a color checker card, but not an 18%
> gray card.  See:
> <http://www.brucelindbloom.com/index.html?ColorCheckerRGB.html#sRGB>
>
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