Brand color

Also called: brand colour, signature color, primary brand color, house color.

The one color a company owns and uses everywhere, from the logo to the main button, so you know whose app it is at a glance. Many companies even give it a name.

Three made-up brands, one app. The brand color is the one color the company owns: it is on the logo, the selected tab, the link and the main button.

Coral

Say it in a prompt

Use our brand color #E0484F everywhere it matters: the logo, the primary button, links, the selected tab underline and focus rings. Keep everything else neutral, and define it once as --brand in CSS.

Seen on

Airbnb: The main button color is #FF385C, a pink-red that Airbnb calls "Rausch".
Duolingo: The brand colors have animal names in the code, like "owl" green and "macaw" blue.

You might describe it as

the company's own color
the airbnb pink everywhere
color you recognize the app by

Not to be confused with

Accent color
A brand color belongs to the company and appears on everything it makes; an accent color is a design choice for one page, used only on the most important parts.