How to match PDF okular colors with Terminal colors?

Question

OS: Kubuntu 22.04.4 LTS x86_64
okular 21.12.3
konsole 21.12.3

to display above:
neofetch --stdout |grep 'OS:'
okular -version
konsole -version

outputs:

ok match color Blue        in Terminal with Blue      in okular  
no match color BrightWhite in Terminal with DullWhite in okular  
               BrightWhite in Terminal = tput setaf 7 in bash  

image1,desired colors, Terminal Output:

.

image2,undesired colors, PDF okular output, converts BrightWhite to DullWhite:

.

okular shortcut Invert key is:
Ctrl-Alt-i

or

okular menu to change color:
Okular/Settings/ConfigureOkular/Accessibility/ChangeColors/DropDownMenu/...

Color Mode: Normal Colors           = WhitePagePdf  
Color Mode: Invert Luma (Symmetric) = BlackPagePdf  
...   

okular Ctrl-Alt-i
Color Mode: Invert Luma (Symmetric) = BlackPagePdf
is a close match to Terminal screen, except for

• BrightWhite in Terminal is DullWhite in okular
• extra Linefeeds

Procedure1:
How to Save the Terminal Output to a Pdf File in Linux?
Konsole terminal / File / Save output as … Ctrl-Shift-s /
HTML document
a.html
open a.html in browser
ctrl-P
PDF Landscape / save as PDF
a.html.pdf
open a.html.pdf with okular

okular Ctrl-Alt-i to change colors

Color Mode: Normal Colors           = WhitePagePdf  
Color Mode: Invert Luma (Symmetric) = BlackPagePdf  
...   

How to match PDF okular colors with Terminal colors?

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