Brand Colors
Slack Brand Colors
Slack's primary brand color is Aubergine (#4A154B), a deep purple used as the app's sidebar background. The signature logo uses four bright accent colors: Sky Blue (#36C5F0), Green (#2EB67D), Yellow (#ECB22E), and Red (#E01E5A) arranged in the iconic hashtag mark.
| Color | HEX | RGB | Role | Usage |
|---|
| Aubergine | #4A154B | rgb(74, 21, 75) | Primary | App sidebar, brand surfaces, marketing headers |
| Sky Blue | #36C5F0 | rgb(54, 197, 240) | Logo accent | Top-left of hashtag logo, link colors |
| Green | #2EB67D | rgb(46, 182, 125) | Logo accent | Bottom-left of hashtag logo, success states |
| Yellow | #ECB22E | rgb(236, 178, 46) | Logo accent | Top-right of hashtag logo, warnings |
| Red | #E01E5A | rgb(224, 30, 90) | Logo accent | Bottom-right of hashtag logo, errors |
Slack's original 2013 logo used 11 different colors, which created printing nightmares and brand inconsistency. The 2019 rebrand simplified to four accent colors arranged in the hashtag-inspired mark, while introducing Aubergine (#4A154B) as the dominant brand surface color — replacing the various greys and whites of the early Slack UI. The deep purple was chosen to feel premium and reduce eye fatigue during long workdays.
Aubergine is used exclusively as the app's left sidebar background. The four accent colors appear together only in the logomark — they are never used as UI background colors. Slack's marketing materials use white space generously, with Aubergine appearing only as the brand anchor in headers and the sidebar mockups.
Frequently asked questions
What is the exact hex code of Slack's Aubergine?
Slack Aubergine is #4A154B in HEX, rgb(74, 21, 75) in RGB. It is the deep purple used as the default sidebar background in the Slack app.
Why did Slack change its logo in 2019?
The original 2013 logo had 11 different colors, causing printing inconsistencies and brand recognition issues across small sizes. The 2019 rebrand simplified to four colors arranged as a hashtag mark, paired with the new Aubergine primary color.
What are Slack's four accent colors?
Sky Blue (#36C5F0), Green (#2EB67D), Yellow (#ECB22E), and Red (#E01E5A). These four appear together only in the logomark and are never used as standalone UI backgrounds.