How do you keep Pantone colours between screen and paper?

[Pyanepsion]

Hello everyone,

My graphic designer has established Pantone shades for my practice’s graphic universe. In CMYK printing, U.S. Coated (SWOP) v2 colour profile, it’s perfect. The books are printed in the right colours.

How to  proceed to get the same colours on the screen?

Thank you for your explanations.

[Amdival]

These pantone swatch books are available in the Swatches panel.
Of course, these colors will be simulated on screen but have the CMYK color mix embedded in them.

Are you asking how to do create RGB equivalence for dislays?

[Pyanepsion]

2 hours ago, Amdival said:

Are you asking how to do create RGB equivalence for dislays?

Yes.

[Amdival]

Open the PANTONE + CMYK Coated book.
Find your color and select it.
The color is now your fill color.
Double click the fill color circle.
You can see the RGB values.

Whoever is choosing brand colors normally would make a decision about what PMS color to use aswell as CMYK and RGB makeups. What I described will give you a quick automated way of finding the RGB values.

[Amdival]

It might be helpful to hit the hamburger then Appearance > Show as List

 

[lacerto]

Obsolete.

[Pyanepsion]

We have defined colours using Pantone codes for our printed works.

• Colour format CMYK/8
• Colour profile U.S. Web Coaded (SWOP) v2.

We also want to offer books for e-readers and the Internet.

• Colour format, we don't know if we should take RGB/8, RGB/16, or RGB/32 (HDR).
• Colour profile sRGB IEC61966-2.1.

Example of Pantone 266 C. Here is a rectangle using this colour in CMYK and below it is exported as a PNG image. The black text uses the default black of the software. The CMYK file was duplicated and its colour profile modified in the different copies.

By changing the different colour formats, we can see that the colours change, especially in RGB/32 (HDR).

1. How do you proceed to obtain always the same colours in RGB colour profile as in CMYK colour profile?
2. Which RGB colour profile is most suitable for the Internet?
3. Which RGB colour profile is best suited to electronic readers?

[lacerto]

Obsolete.

[Pyanepsion]

Thank you, @lacerto. You confirm that it is therefore appropriate to correct the RGB palette by piping the image from the CMYK palette.

1. I noted the same RGB values in RGB 8 as CMYK, minimal differences in RGB 16, and very large differences in RGB 32 HR.

But what about the other two questions:

2. Which RGB colour profile is most suitable for the Internet (RGB/8, RGB/16, or RGB/32 HDR)?

3. Which RGB colour profile is best suited to electronic readers (RGB/8, RGB/16, or RGB/32 HDR)?

[Amdival]

1 hour ago, Pyanepsion said:

Thank you, @lacerto. You confirm that it is therefore appropriate to correct the RGB palette by piping the image from the CMYK palette. But what about the other two questions:

2. Which RGB colour profile is most suitable for the Internet (RGB/8, RGB/16, or RGB/32 HDR)?

3. Which RGB colour profile is best suited to electronic readers (RGB/8, RGB/16, or RGB/32 HDR)?

Use 8-bit
 

[lacerto]

Obsolete.

[Pyanepsion]

I found some more precise information.

1. A JPEG file is coded in 8 bits
2. A RAW file is coded between 12 and 14 bits depending on the camera.

In 8 bits, it is therefore impossible to record all the information present in a RAW format. In 16-bit, photo editing will be much more precise and detailed, especially if the photo undergoes quite complex editing or HDR processing.

32-bit HDR is a format known mainly for 3D images. It allows for a wider range of colours between blacks and whites. It is particularly useful for illuminating 3D scenes. A single HDR image is enough to achieve a hyper-realistic rendering.

But that’s not all. Here’s what Affinity’s help says about 32-bit HDR:

https://affinity.help/photo/fr.lproj/index.html?page=pages/HDR/hdr_editing.html?title=Modification HDR 32 bits