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Problem color accuracy when converting from/to RGB – CMYK


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Hello AF members.

Title. For instance blue color displays as totally different than on the gradient map tool context menu (screenshot at the bottom). Can not change it to function normally (even when I type the exact color value). This happens when I change document color space and then I try to edit gradient map. Is this known bug or am I doing something wrong? Slight shift from RGB color space to CMYK and the other way around is expected because of the nature of conversion, but this is not normal behaviour.

 

System: MacOs 11.5.2, MacBook Pro 15inch 2017

App version: 1.10.0

The bug can be reproduced. I set the color value in the CMYK document in the gradient map layer (one of the colors is for instance CMYK 54/0/0/0). Then I convert the document to RGB/8. Color is totally different. This happens in all my documents. Made a step by step video.

 

 

Screenshot 2021-08-23 at 18.50.41.png

Edited by MarekGFX
Updated info on the bug

marekmati.com

[MAC OS 12.2, MacBook Pro  2017, 15-inch, 2.9 GHz Quad-Core Intel Core i7, 16 GB 1600 MHz DDR3, AMD Radeon Pro 560, Intel HD Graphics 630, 500GB SSD + Philips Monitor 4K/60fps 10bit color via DisplayPort to USB-C cable]

Affinity Publisher 1.10.5, Affinity Designer 1.10.5, Affinity Photo 1.10.5

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Thank you for the response :) I updated the bug description and made a step by step guide to reproduce it. Hope it helps.

marekmati.com

[MAC OS 12.2, MacBook Pro  2017, 15-inch, 2.9 GHz Quad-Core Intel Core i7, 16 GB 1600 MHz DDR3, AMD Radeon Pro 560, Intel HD Graphics 630, 500GB SSD + Philips Monitor 4K/60fps 10bit color via DisplayPort to USB-C cable]

Affinity Publisher 1.10.5, Affinity Designer 1.10.5, Affinity Photo 1.10.5

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