Description:
If I change the 'Highlight Color' to 'Blue1' on some words that I've highlighted, and then I save it, and then I open up the same document again, then same highlighted words have changed to the darker 'Blue3'.

Steps to Reproduce:
1.Highlight some words, and change the 'Highlight Color' to 'Blue1'.
2.Save the docx.
3.Open the docx, and the 'Highlight Color' to 'Blue1' will now be 'Blue3'.

Actual Results:  
After saving the docx, and opening the docx up again, it changed the selected Highlight Color from Blue1 to Blue3.

Expected Results:
After saving the docx, and opening the docx up again, the selected Highlight Color should still be Blue1 instead of Blue3.


Reproducible: Always


User Profile Reset: No


OpenGL enabled: Yes

Additional Info:
[Information automatically included from LibreOffice]
Locale: en-US
Module: TextDocument
[Information guessed from browser]
OS: Windows 7 64bit
OS is 64bit: Yes

Version: 5.4.4.2 (x64)
Build ID: 2524958677847fb3bb44820e40380acbe820f960
CPU threads: 8; OS: Windows 6.1; UI render: default; 
Locale: en-CA (en_US); Calc: group


User-Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:59.0) Gecko/20100101 Firefox/59.0