Add-on Editor - colors with style color names

[voom]

The color picker in the editor has fixed hex colors. When using light and dark themes in the forum, the same color could be almost invisible to some users and great for others. Is there an add-on or a bb code or sth else, that makes it possible to enter color variables to give different values depending on the style? Like "blue" could be a light blue on a dark theme, and a dark blue on a light theme...