I entered the same color code number in illustration and Photoshop, but does HSB have different valu

[Ray2988]

I entered the same color code number in illustration and Photoshop, but does HSB have different values? RGB and CMYK have the same value, but HSB is different. Fragmentally, if you enter #80949b into Photoshop, RGB and CMYK are the same values, but HSB is different from 196/17/61 (Photoshop) and 194/17/60 (illustration). Also, if you enter the color code above in the cs6 version, the three values of RGB, CMYK, and HSB are all different. It makes a difference visually, like a completely different color. Can you tell me why? I knew that each program has a different color, but why is there a numerical difference even though it's the same code number?

[kglad]

<moved from enterprise & teams>

[D Fosse · Accepted solution]

Hex is just base 16 notation for ordinary RGB numbers, and numbers are color space specific. Any given set of numbers will produce different visual colors in different color spaces. Any given color will yield different numbers in different color spaces.

In fact, that's what a color space is: a definition of numbers as colors and vice versa.

The common reference is Lab.

Same numbers > different colors:

Same color > different numbers:

[Bob_Hallam]

As D Fosse has noted, color management bases it's colors in CIELab color space.  Color numbers are there to denote a color in a color system.  

To make a single set of numbers match across all systems, convert it to 16 bit CIELab.  (Make an image in Photoshop) then only convert it once to each color space.  Remember hexadecimal colors are only in sRGB and  are fore websites.  

[ElizabethOOOG]

Go by number if you're swatching. Use Lab values. Every other gamut is arbitrary. Go through all preferences for consistency. Monitor and all. Check your dropper sample size. Or... Define your color choices in PMS for color management across apps. That color system doesn't change much. Don't worry.

[ElizabethOOOG]

Adobe's apps will change weekly.  Don't use their profiles. They have been too inconsistent.

[TheDigitalDog]

Adobe's apps will change weekly.  Don't use their profiles. 

By @ElizabethOOOG

What profiles would those be? 

Every other gamut is arbitrary.

By @ElizabethOOOG

What does that mean? There's nothing arbitrary about a color gamut; it just is. 

[NB, colourmanagement]

@ElizabethOOOG we need more explanation here, what do you mean by "Don't use their profiles"?

neil barstow, colourmanagement net - adobe forum volunteer - co-author: 'getting colour right'

[Test Screen Name]

Hmm, since Adobe's apps MUST use profiles, and we aren't to use Adobe's profiles, whose profiles should we use instead?

[NB, colourmanagement]

@Bob_Hallam Hi Bob, I'm wondering if I am misunderstanding your comment?

"Hmm, since Adobe's apps MUST use profiles, and we aren't to use Adobe's profiles, whose profiles should we use instead?"

Do you consider Adobe's ICC profiles to be inconsistent? Your comment reads as if you think the profiles themselves are faulty? Is that right or I'm reading you wrong?

neil barstow, colourmanagement net - adobe forum volunteer - co-author: 'getting colour right'

[Bob_Hallam]

My first response was just missing the quotes.  I'm laughing because the statement by the OP is not even close to being factual.  Adobe profiles are standard profiles packaged with the software.  They haven't changed very much in decades 

[NB, colourmanagement]

@Bob_Hallam "Lol, Adobe's profiles are inconsistent.  This is not remotely correct. "

did that come out right? You consider Adobe's ICC profiles to be inconsistent?

neil barstow, colourmanagement net - adobe forum volunteer - co-author: 'getting colour right'
google me "neil barstow colourmanagement" for lots of free articles on colour management

[Bob_Hallam]

Lol, Adobe's profiles are inconsistent.  This is not remotely correct.  

[davescm]

'....Every other gamut is arbitrary....'

'...........Adobe's apps will change weekly. Don't use their profiles. They have been too inconsistent.......'

Sorry but that is just wrong and shows a misunderstanding of profiles. Using properly defined ICC colour profiles, in a correctly set up colour managed workflow is designed to achieve consistency. The sRGB IEC61966-2.1 color space was created in 1996 and standardised in 1999. Similarly, the Adobe RGB 1998 color space was defined in 1998. 25 years without change and you claim they are inconsistent. Wow.

Dave