This component is using the medium shade of the highlight color. You can see the exact one in your style guide if you have it enabled in admin-settings-(styleguide enabled or styleguide admin only) the style guide for the theme’s colors is at /styleguide/atoms/colors
I’m trying to build a json color picker but it’s not working. I just get a blank pop up with a save button.
The color picker JSON setting (in a theme/component) is not working on Discourse, indeed.
I think good practice would be to use Discourse colors variables in general instead of picking arbitrary colors in a theme or component that won’t blend nicely depending on what other themes and colors users chose.
A user made a color picker for the composer some time ago, but I’m not sure the code was released: