EnDeeKay Posted January 30, 2023 Posted January 30, 2023 Hello there! I was learning and practicing about colors and shades etc. I found something strange, that was strange for me, because I am not very much familiar with all color things. Here experts must know about these color things. When we write RGB 0, 255, 255 -- that shows a result in ----------------(1) CMYK as => 52, 0, 13, 0 ----------(2) and when we write CMYK 100, 0, 0, 0 -- that shows a result in ---------------(3) RGB as => 0, 174, 239 ------------(4) But, when we write back RGB 0, 174, 239 -- that shows a result in -----------------(5) CMYK as => 69, 15, 0, 0 -----------(6) And when we write back CMYK 69, 15, 0, 0 -- that shows a result in ---------------(7) RGB as => 46, 171, 226 -----------(8) Now, fill results of objects on screen are same for (4) and (6), and different for (6) and (8). Also, What is the different between CMYK 100, 0, 0, 0 and RGB 0, 255, 255 as both are Cyan Colors, what I understand, and which is correct? What color system we should follow? Is there any error in Affinity Designer App or its something else? Regards Nadeem Khatri Quote
walt.farrell Posted January 30, 2023 Posted January 30, 2023 If your (1) through (8) were supposed to be image attachments, I'm not seeing any sign of them. Quote -- Walt Designer, Photo, and Publisher V1 and V2 at latest retail and beta releases PC: Desktop: Windows 11 Pro 23H2, 64GB memory, AMD Ryzen 9 5900 12-Core @ 3.00 GHz, NVIDIA GeForce RTX 3090 Laptop: Windows 11 Pro 23H2, 32GB memory, Intel Core i7-10750H @ 2.60GHz, Intel UHD Graphics Comet Lake GT2 and NVIDIA GeForce RTX 3070 Laptop GPU. Laptop 2: Windows 11 Pro 24H2, 16GB memory, Snapdragon(R) X Elite - X1E80100 - Qualcomm(R) Oryon(TM) 12 Core CPU 4.01 GHz, Qualcomm(R) Adreno(TM) X1-85 GPU iPad: iPad Pro M1, 12.9": iPadOS 18.3.1, Apple Pencil 2, Magic Keyboard Mac: 2023 M2 MacBook Air 15", 16GB memory, macOS Sequoia 15.0.1
Staff MattP Posted January 30, 2023 Staff Posted January 30, 2023 ...and the answer to your questions, is almost certainly: Colour Profiles! EnDeeKay 1 Quote
v_kyr Posted January 30, 2023 Posted January 30, 2023 6 minutes ago, MattP said: ...and the answer to your questions, is almost certainly: Colour Profiles! Quote ☛ Affinity Designer 1.10.8 ◆ Affinity Photo 1.10.8 ◆ Affinity Publisher 1.10.8 ◆ OSX El Capitan ☛ Affinity V2.3 apps ◆ MacOS Sonoma 14.2 ◆ iPad OS 17.2
NotMyFault Posted January 30, 2023 Posted January 30, 2023 12 minutes ago, MattP said: ...and the answer to your questions, is almost certainly: Colour Profiles! Unfortunately with the addition that colour format conversions in Affinity produce really strange buggy results, depending on colour is applied to vector object or pixel object. and Quote Mac mini M1 A2348 | MBP M3 Windows 11 - AMD Ryzen 9 5900x - 32 GB RAM - Nvidia GTX 1080 LG34WK950U-W, calibrated to DCI-P3 with LG Calibration Studio / Spider 5 | Dell 27“ 4K iPad Air Gen 5 (2022) A2589 Special interest into procedural texture filter, edit alpha channel, RGB/16 and RGB/32 color formats, stacking, finding root causes for misbehaving files, finding creative solutions for unsolvable tasks, finding bugs in Apps. I use iPad screenshots and videos even in the Desktop section of the forum when I expect no relevant difference.
EnDeeKay Posted January 30, 2023 Author Posted January 30, 2023 2 hours ago, MattP said: ...and the answer to your questions, is almost certainly: Colour Profiles! Thanks MattP. It seems that it is the right answer for my query, as I checked the same in CorelDRAW. Further, I did not get answer for the numbers as color values, when we put same number values, the result changes???? Thanks Quote
EnDeeKay Posted January 30, 2023 Author Posted January 30, 2023 2 hours ago, MattP said: ...and the answer to your questions, is almost certainly: Colour Profiles! Thanks MattP. It seems that it is the right answer for my query, as I checked the same in CorelDRAW. Further, I did not get answer for the numbers as color values, when we put same number values, the result changes???? Thanks MattP 1 Quote
Staff MattP Posted January 30, 2023 Staff Posted January 30, 2023 Everything is going to the screen with screen profiles applied, taking into account the document format and colour profiles. You should find you get the same colour results with the same setups in all other colour-managed applications. I'm fairly certain it's all acting correctly (or at least, it certainly used to and I can't imagine why it has changed, lol!) It's not an incredibly complicated area, but it's lengthy to explain - take a browse through some 'colour management for screen' google searches Quote
EnDeeKay Posted January 30, 2023 Author Posted January 30, 2023 1 hour ago, MattP said: It's not an incredibly complicated area, but it's lengthy to explain - take a browse through some 'colour management for screen' google searches Yes it is not complicated, rather it needs practice on applications. By the way Google has more complicated results as everyone has ones own perceptions. Thanks a lot Quote
EnDeeKay Posted January 30, 2023 Author Posted January 30, 2023 Can anyone give a brief idea about these numbers and color values, changes and applications. Quote
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