⚠ Editorial Disclaimer: This page is an independent color reference resource. It is not affiliated with, endorsed by, or sponsored by the brand listed above or any of its parent companies. All color values are documented for educational and design reference purposes only. Trademarks and brand identities belong to their respective owners.

Slack Color Palette

An in-depth exploration of the Slack color system. See how this carefully calibrated Purple palette drives brand recognition across tech applications.

Slack Primary

HEX#4A154B
RGB74, 21, 75

Slack Accent

HEX#36C5F0
RGB54, 197, 240

Slack Accent

HEX#2EB67D
RGB46, 182, 125

Slack Accent

HEX#E01E5A
RGB224, 30, 90

The Visual Identity of Slack

Color Systems & Brand Psychology

Primary Hue

Slack's primary color #4A154B sits in the blue spectrum — a spectrum that design research links to feelings of calm authority and trust among global software audiences.

Industry Psychology

Color research in the tech sector consistently shows that blue hues perform well for conveying calm authority. By anchoring its identity in this spectrum, Slack aligns itself with values its global software audiences already trust.

Strategic Usage

These color values are design specifications, not decorative choices. Slack's consistency in applying this palette across digital products ensures every touchpoint reinforces the same brand message — making calm authority an immediately recognisable quality of the brand.

UI Design & Application Guide

Thinking of using the Slack color palette in your next project? Here is a professional guide on how to apply these colors effectively for web and mobile interfaces.

Aa
Header One
HEX: #4A154B Primary Brand Color

When using #4A154B as a background, strict accessibility standards (WCAG) recommend using #FFFFFF for your typeface to ensure maximum readability.

Call to Action
Get Started
Button Component
Accent Usage
Use Slack Purple as a high-visibility accent color on clean white surfaces to draw attention.
Dark/Brand Background
Professional Tip: Designers using Figma or Adobe XD should create a specific color style named Slack Primary to ensure consistency across all tech mockups.

Technical Color Data Table

For developers and designers, accuracy is non-negotiable. Below are the precise conversions.

Color Name HEX Code RGB Values CSS Variable
Slack Primary #4A154B rgb(74, 21, 75) var(--slack-primary)
Slack Accent 1 #36C5F0 rgb(54, 197, 240) var(--slack-color-2)
Slack Accent 2 #2EB67D rgb(46, 182, 125) var(--slack-color-3)
Slack Accent 3 #E01E5A rgb(224, 30, 90) var(--slack-color-4)

CSS Implementation

Copy this CSS snippet to your :root to instantly implement the Slack brand styles.

:root {
  --slack-primary: #4A154B;
  --slack-color-2: #36C5F0;
  --slack-color-3: #2EB67D;
  --slack-color-4: #E01E5A;
}

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Frequently Asked Questions

What is the primary HEX color code for Slack?
The primary color in the Slack palette is #4A154B. This value is documented here for reference purposes. For official brand implementation, always consult Slack's own brand guidelines.
Does #4A154B meet WCAG accessibility contrast requirements?
WCAG 2.1 AA requires a contrast ratio of at least 4.5:1 for normal text. When using #4A154B as a background, white (#FFFFFF) text typically achieves the required ratio. Always verify with a contrast checker tool before production use, as contrast depends on your exact background color.
Why does Slack use blue as its primary color?
Blue tones are widely associated with calm authority in color psychology research. For a brand operating in the tech sector, this association helps communicate the right emotional signal to global software audiences — though the final palette decision reflects many factors including competitive differentiation and historical brand equity.
Can I use the Slack color palette in my design project?
The colors documented on this page (RGB values, HEX codes) are factual technical specifications and may be referenced for editorial, educational, or personal design inspiration. However, using Slack's colors in a way that implies endorsement, affiliation, or commercial association with Slack may raise trademark concerns. For commercial projects, review Slack's brand guidelines and, if needed, consult a legal advisor.