Illustrator colour values change when exported and viewed in Acrobat Output Preview

[S38937906kex3]

The original cmyk I wanted to use was #19184A, but when exported as a pdf, it became #1B1849.

There is a difference in color; the picture in the upper one is a screenshot of a file open in Adobe Acrobat, and below is an Illustrator file.

[Monika Gause]

HEX color is not a CMYK definition. It will be already changed when you input it.

Please read about how color works.

[Ton Frederiks]

When you work in a CMYK document, only use CMYK colors. All others (RGB, Hex) will be converted to the closest possible CMYK color (and that color will again be converted to RGB/Hex).

When saving as PDF turn off conversion to any CMYK and make sure that the Color Settings are the same in both applications.

[S38937906kex3]

What should the color settings be?

[Ton Frederiks]

What are your color settings?

[S38937906kex3]

I did everything from above, but still, there are color shifts.

[Monika Gause]

Do not use HEX color as a reference when in CMYK workflows.

[S38937906kex3]

yes i was instructed to use #19184A 

[Monika Gause]

yes i was instructed to use #19184A 

By @S38937906kex3

That cannot work in CMYK color mode.

[S38937906kex3]

can you suggest me what should i do

[Monika Gause]

As soon as you enter the HEX code into the color panel in a CMYK document, the color gets converted. And the HEX values will look differently. ANd that's that. Everything is working as it should.

The only thing you need to do is take care to not convert that value again when exporting to PDF.