Why not make a example to use HTML tag to make colored/coloured text.
Ps. You could find other colours here: HTML Color Names
Some text in color Yellow
Other text in color Green
My favorite color is Blue
ex. In the dialog you type: Some text in color Yellow,yellow
Save the code below as menu script, ex. ~/Library/Scripts/Applications/Safari
use framework "Foundation"
use scripting additions
on run
set dialogString to (display dialog "Type word/sentence and end with comma and span tag color" default answer "")'s text returned
set theString to current application's NSString's stringWithString:dialogString
set theComponents to theString's componentsSeparatedByString:","
set theString to current application's NSMutableString's alloc()'s init()
theString's appendFormat_("<span style=color:%@>%@</span>", item 2 of theComponents, item 1 of theComponents)
set the clipboard to (theString as string)
end run
Its also possible to use background-color
My text is background color of green
Ps. The problem could be that the color you choose isn’t the best look-feel in light vs dark appearance.
ex.
Text in Yellow looks good in dark mode appearance but not in light.