Prateek Saxena

Siddharth Ashok

Add color to posts, tags, and categories. You’ll see new a new metadata form on tag, category and post pages that lets you set a background and foreground color. The plugin only saves the data and doesn’t change any colors on the theme.
Banner art by <a href="http://rheagupte.com/" rel="nofollow ugc">Rhea Gupte</a>.

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.

Iro vs Custom Color Palette for Gutenberg