Colour Issues when Publishing Online and ePUB export

[monsieurl73093884]

Hello everyone,

When I publish an RGB document online the colours seem washed out and as if they are being converted to CMYK.

The same happens when i export the same file to ePUB.

When i export to PDF everything is perfect.

It used to work perfectly for years, and the problem is now happening for 3 weeks or so.

I dont know what could be the issue since nothing has changed regarding the colour settings.

I ofcourse checked the traditionnal colour problems occuring with enabled wrong settings:

-transparency is set to RGB

-bridge has never been installed on our creative suite

-space colour is sRGB

i tried the emulate Adobe Indesign 2.0  SGC disabled trick , it worked on 3 online publications then stopped.

Now every online publication ans ePUB exports are wrong

[Eugene Tyson]

If it's being converted you're in control of that.

Can you please share your export settings?

Have you tried changing your export options.

As far as I know there's no way to convert colours to CMYK for ePUB. 

So there is something going on - if you can supply the export information you are using.

Thanks

[Benjamin27121716k5le]

Sure here are my presets for the epub export.

I am really concerned by the wrong appearance of the html pages generated via the Publish Online feature, i must say.  I have absolutely no control when using this option...

[rob day]

Hi @monsieurl73093884 , can you post a screen capture showing the color change?

[Benjamin27121716k5le]

here is one of a published online portfolio i just did

html on the left, indd file on the right

the reds are totally washed out and lack saturation (mostly)

[rob day]

It looks like the difference I would expect between AdobeRGB and sRGB:

What version of InDesign are you using? Have you tried deleting your Caches folder and if that doesn’t work resetting your Preferences?

Could you share the ID file? You should be able to attach it to a reply—don’t need the fonts.

[Benjamin27121716k5le]

Hi,

i just did a new test:

here is a published online link generated using this preset

this is the only way i have to keep my reds not too dull and unsaturated

 

but still, when we compare to the original file on Indd the difference of tints are obvious and problematic.

 

 

https://indd.adobe.com/view/bbc25f99-ae79-47f2-9e95-980a858c7f53

[rob day]

It’s likely happening because you have Color Mangement turned Off. Try setting your Color Settings to one of the default presets, and with your document open, assign sRGB as the doucument RGB Profile—Edit>Assign Profiles....

[Benjamin27121716k5le]

Precisely,

this is when my settings are with sRGB assigned that i got the worst results

 this is my original and usual setting for all my indd file, but if i leva it as it is and export i have this awful  result

 we can see clealy here that there is no pink anymore...

[rob day]

If I check your InDesign doc it does have sRGB assigned, but the images are showing as Document RGB, so if they were edited in a different RGB space InDesign isn’t seeing the original’s profile and is reassigning the InDesign Document’s sRGB profile.

Here I have the original color with AdobeRGB embedded, and you can see the color difference when the embedded profile is ignored (DocumentRGB) vs. using the embedded AdobeRGB profile:

The published page:

[Benjamin27121716k5le]

you are right about this, the coulours are almost perfect with Adobe RGB 

but i can't select it on my colour settings.

i am supposed to set my Work space with sRGB; am i correct?

but how do i force the conversion AdobeRGB then?

[rob day]

Can you share one of the images that you have placed?

[Benjamin27121716k5le]

 Sure here are a few of the ones

 

[rob day]

Hi @Benjamin27121716k5le , This has come up before and it does seem to be a color conversion bug specifically with images. It’s most noticeable with reds and magentas, but it looks like images are getting converted into some unknown RGB space with no profile, so when the browser displays the color as sRGB there is a mismatch.

Here my InDesign document’s profile is set to sRGB and the placed image also has sRGB embedded. By default modern web browsers display RGB as sRGB even when there is no profile embedded, so in this case the RGB values should export unchanged, but there is a conversion to something other than sRGB. Also if I create InDesign RGB fills those colors export correctly to sRGB as expected, and if I include a PDF/X-4 for download, the exported PDF displays the sRGB image correctly

[rob day]

If anyone else wants to look at this, my test file is attached, and here is the published page:

https://indd.adobe.com/view/8ad11976-a6ed-4204-b8b4-c108c1d2c2d1

[HARSHIKA_VERMA]

Hi @monsieurl73093884,

Thank you for reporting the issue. I am checking with the InDesign product team and will update the post as soon as I hear any updates on it.

Thanks, @rob day and @Eugene Tyson  for your helpful contribution to this post. We appreciate your presence in the community.

Thanks,

Harshika

[Mike Witherell]

I was wondering if you had noticed that your color management was not synchronised? I always take care to set it up in Photoshop, and then make sure InDesign and the others follow the same .csf that was set in Photoshop.

It might or might not apply to your problem, but it is important to have the whole thing doing one set of house rules when it comes to color management.

[rob day]

Hi Mike, The example I attached above only contains profiled sRGB color, so the colors should publish to HTML unchanged. The test includes matching image and native ID sRGB values, that publish with noticeably different appearances in the HTML doc, but match in the PDF download.

---

[rob day]

Here’s another example that shows the color shift is mostly in the red magenta space, so it wouldn’t be noticeable in all images:

https://indd.adobe.com/view/9fb93562-ab0b-4615-96e3-527e5bd98d8c