Ático estudio

Aticolor Palettes lets you build and maintain a personal color library right inside WordPress. Ideal for designers and developers who work on multiple sites and want quick access to project color palettes.
Key features:
<ul>
<li>Color groups — organize colors by project, brand or category</li>
<li>Toolbar access — click the palette icon in the admin bar for instant access from any page</li>
<li>Full admin page — manage your palette from a dedicated, spacious interface</li>
<li>One-click copy — click “Copy” on any color to send the hex value to your clipboard</li>
<li>Transparency support — opacity slider + 8-digit hex (#RRGGBBAA) for colors with alpha channel</li>
<li>Add, edit and delete — full CRUD for both groups and colors</li>
<li>Remembers collapsed groups — the dropdown remembers which groups you collapsed</li>
<li>Persistent storage — your palette is saved in the WordPress database</li>
<li>Internationalized — available in English and Spanish (and ready for more languages)</li>
</ul>
<h3>External Services</h3>
This plugin optionally connects to Ko-fi (https://ko-fi.com) when you click the “Support this plugin” button. The Ko-fi donation page is loaded in a modal iframe solely to allow voluntary donations to the plugin author. No data from your WordPress site is sent to Ko-fi automatically — the connection is only made when a logged-in admin explicitly clicks the button.
<ul>
<li>Ko-fi Terms of Service: https://ko-fi.com/terms</li>
<li>Ko-fi Privacy Policy: https://ko-fi.com/privacy</li>
</ul>

Aticolor Palettes – Color Palette Manager for Designers

Personal color palette library — save color groups and access them from the admin toolbar or the dedicated admin page.

Joni Halabi

Important notice!
Due to a shift in my personal and professional priorities, I have decided to take a step back from development. As a result, this plugin is no longer being actively maintained. You are welcome to <a href="https://github.com/thatdevgirl/wordpress-color-palette" rel="nofollow ugc">fork it</a> and create your own updates. If you do so, please credit me as the original author. (I would also love to hear about this plugin’s new life!)
All the best, Joni.
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The Color Palette block displays a group of colors on your page. The block starts with 3 individual Color blocks, but you can add additional blocks or remove excess blocks as needed.
Give each color block a color using the selector in the Inspector Panel on the right-hand side of the editor, give your color a name, and you are done! If you need to use the same color palette on multiple pages or posts, simply save the Color Palette block with all of your colors as a reusable block through the editor.

Color Palette

[Deprecated!] Add a Color Palette block to pages in the post editor.

Aticolor Palettes – Color Palette Manager for Designers vs Color Palette