Slack Purple colour (#4A154B)
Slack Purple is dark a purple with hex code #4A154B, the primary brand colour as commonly published in the brand’s guidelines. In RGB it is 74, 21, 75; in HSL 299°, 56%, 19%. Use the tool to explore shades and harmonies.
How to use the Slack Purple colour
- The colour is pre-filled; click Explore to see all formats, shades and harmonies.
- Edit the value to try a variation.
- Copy the code you need.
Slack Purple in every format
| Format | Value |
|---|---|
| HEX | #4A154B |
| RGB | rgb(74, 21, 75) |
| RGB (0–1) | 0.290, 0.082, 0.294 |
| HSL | hsl(299, 56%, 19%) |
| CMYK (approx.) | 1%, 72%, 0%, 71% |
Shades and tints of Slack Purple
Same hue and saturation, lightness from 90% to 10%:
#f3d7f4 | #e8afe9 | #dc88dd | #d060d2 | #c538c7 | #9d2d9f | #762277 | #4f1650 | #270b28 |
Colours that go with Slack Purple
| Harmony | Colours | |
|---|---|---|
| Complementary | #164c15 | |
| Triadic | #4c4b15 | #154c4b |
| Analogous | #4c1531 | #30154c |
Similar named colours
The closest CSS named colours by RGB distance, useful when you need a keyword instead of a hex code or want a near match:
| Colour | HEX | Difference |
|---|---|---|
| indigo | #4b0082 | close |
| midnightblue | #191970 | close |
| darkslategray | #2f4f4f | close |
| darkslateblue | #483d8b | close |
| purple | #800080 | close |
Accessibility
Contrast ratio of Slack Purple against white is 14:1 (passes WCAG AA for normal text) and against black 1.5:1 (fails). Use Slack Purple for text on white backgrounds.
Brand colours are the commonly published primary values and may be updated by the brand; check the official brand guidelines before print use. Trademarks belong to their owners.
Frequently asked questions
What is the hex code for Slack Purple?
#4A154B.
What is Slack Purple in RGB?
rgb(74, 21, 75).
What colour is complementary to Slack Purple?
#164c15, directly opposite on the colour wheel.
Privacy
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Last updated 2026-09-23.