daevisioninc

DaeColor the first category color coding plugin for wordpress by DaeVision inc.
It?s a simple plug-in that adds categories and a colored block to the beginning of posts (look at the advanced instructions for manual insertion). You can either use the color picker to select the category color or use our color coding algorithm to automatically generate a unique color for each of your categories. The color of the block generated is based on the category name.
<pre><code> You can edit the CSS of the plugin to suit your needs.
 It adds a nice splash of color to your site
</code></pre>

DaeColor

Add some splash of color to your site by color coding all you categories. Use DaeColor to color code your posts.

ThemeZee

The Custom Color Palette plugin allows you to change the default color palette in the new WordPress Gutenberg Editor.
It replaces the color palette of WordPress Core and the theme.
<h4>Enable and change colors from three categories</h4>
<ul>
<li>Main Colors 
Primary, Secondary and Accent colors</li>
<li>Grayscale Colors 
White, Light Gray, Dark Gray, Black</li>
<li>Primary Colors 
Red, Green, Blue, Yellow, etc.</li>
</ul>
<h4>Requirements</h4>
This plugin only works with the new Editor. You have to use WordPress 5.0 or the <a href="https://wordpress.org/plugins/gutenberg/" rel="ugc">Gutenberg</a> plugin.
Note: Changing colors works with CSS variables and is not supported in outdated browsers like Internet Explorer.

Custom Color Palette for Gutenberg

A small and simple plugin to adjust the default color palette of the new WordPress Gutenberg Editor.

DaeColor vs Custom Color Palette for Gutenberg