Slack Color Psychology & Meaning
Slack's palette is deliberately unusual for enterprise software — a dark purple with three saturated accent colors. It says: work can be human and colorful.
#4A154B
#ECB22E
#36C5F0
#2EB67D
Background
Primary Accent
Secondary
Body Text
Slack
moodyvibrant springsummer appbranding
AA
WCAG Grade
5.4:1
Contrast Ratio
3,400
Saves
9,100
AI Copies
Use #4A154B as the background. Use #ECB22E as the primary accent. Use #36C5F0 as secondary. Use #2EB67D as body text/supporting color. Palette mood: Slack — moody, vibrant.
Hex Codes, RGB & CMYK Color Values
Technical breakdown for the Slack color scheme. Use these values for web design (HEX/RGB), print projects (CMYK), or specialized design software (HSL).
| Swatch | Design Role | HEX | RGB | CMYK | HSL |
|---|---|---|---|---|---|
| Background Luminance: 2.5% | 74, 21, 75 | 1%, 72%, 0%, 71% | 299°, 56%, 19% | ||
| Primary Accent Luminance: 49.9% | 236, 178, 46 | 0%, 25%, 81%, 7% | 42°, 83%, 55% | ||
| Secondary Luminance: 47.0% | 54, 197, 240 | 78%, 18%, 0%, 6% | 194°, 86%, 58% | ||
| Body Text Luminance: 35.5% | 46, 182, 125 | 75%, 0%, 31%, 29% | 155°, 60%, 45% |
Color Harmony: Triadic Scheme
The Slack palette is built using a triadic relationship between its hues. This ensures that even with high-contrast accents, the overall scheme feels balanced and intentional.
Hue Wheel
A triadic palette is often preferred by professional designers because it balances visual interest with cohesion.
History & Design Context
Slack launched in 2013. The aubergine purple was chosen specifically to differentiate from blue-dominant enterprise software. Stewart Butterfield insisted on the distinct color.
Best Design Use Cases
Aubergine only for the sidebar. Each accent color maps to a functional state — yellow for attention, blue for communication, green for success.
Industries This Palette Suits
Workplace communication, enterprise software, SaaS.
How to Implement the Slack Color Scheme
To use this Slack color palette in your web project, you can copy the following CSS variables or Tailwind CSS configuration. These roles ensure your UI maintains accessibility and visual hierarchy.
Option 1: CSS Variables
:root {
/* {name} Palette - ihatecolors.com */{'
'} --color-bg: {colors[0]};{'
'} --color-primary: {colors[1]};{'
'} --color-secondary: {colors[2]};{'
'} --color-text: {colors[3]};{'
'} {'}'}Web Design Tip
Use #4A154B for the main background and #ECB22E for primary buttons. This creates a high-contrast focal point.
Accessibility Note
The contrast ratio between #2EB67D and #4A154B is 5.40:1 (AA). Ensure your body text remains legible.