stoutdesign

The Stout Google Calendar plugin allows you to easily add and customize embedded Google Calendars to your WordPress site. You can even change color settings that are not normally modifiable, allowing you to seamlessly integrate Google Calendars into the look of your site. No more ugly Google Calendars!
Features include:
<ul>
<li>Customize the color scheme of embedded Google Calendars</li>
<li>Options from the Google Embeddable Calendar Helper can be modified directly within the WordPress Admin</li>
<li>Save multiple calendars, each with it’s own color scheme, size and display settings</li>
<li>Display calendars in a Widget, Pages or Posts via shortcode or in templates</li>
<li>Live preview of all changes to a calendar as you make each change</li>
<li>Easy color picker or directly input hexadecimal color values</li>
</ul>

Stout Google Calendar

Stout Google Calendar allows you to add and customize the colors and options of embedded Google Calendars directly within the WordPress admin.

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.

Stout Google Calendar vs Custom Color Palette for Gutenberg