
Slack is a cloud based team communication platform developed by Slack Technologies, which has been owned by Salesforce since 2021. It is offered mainly as a business to business service, with features built around team communication and business administration.
Slack began as an internal chat tool at Stewart Butterfield's company Tiny Speck during work on the online game Glitch, and it launched to the public in August 2013. Salesforce agreed to buy the company in December 2020 and completed the deal on July 21, 2021. The current logo, introduced on January 16, 2019, pairs a four color hash symbol with a black lowercase slack wordmark.
Logo history
- 2013: Slack launches to the public in August.
- 2019: on January 16, Slack introduces a new logo created by its in house design and brand team with Michael Bierut and Pentagram. It replaces the first logo, an 11 color hash mark, with a simpler palette.
- 2021: Salesforce completes its acquisition of Slack on July 21.
This timeline lists only changes that a cited source confirms. Earlier or minor variants of the Slack mark that could not be dated from a primary or reputable source are left out rather than guessed.
Logo colors
| Color | HEX | RGB | Source |
|---|---|---|---|
| Black | #000000 | 0, 0, 0 | Commons SVG fill |
| Red | #E01E5A | 224, 30, 90 | Commons SVG fill |
| Blue | #36C5F0 | 54, 197, 240 | Commons SVG fill |
| Green | #2EB67D | 46, 182, 125 | Commons SVG fill |
| Yellow | #ECB22E | 236, 178, 46 | Commons SVG fill |
The Slack palette on this page has 5 recorded values. Black is #000000, which is RGB 0, 0, 0. Red is #E01E5A, which is RGB 224, 30, 90. Blue is #36C5F0, which is RGB 54, 197, 240. Green is #2EB67D, which is RGB 46, 182, 125. Yellow is #ECB22E, which is RGB 236, 178, 46. Where a value comes from a redrawn vector rather than the owner’s own guide, check it against official files before using it in design work.
Typography
No typeface has been named by the company.
FAQ
When did Slack launch?
August 2013.
What color is the Slack logo?
Black #000000 in the vector file.
Sources
- https://en.wikipedia.org/wiki/Slack_(software)
- https://commons.wikimedia.org/wiki/File:Slack_Technologies_Logo.svg
- Slack, Say hello, new logo (January 16, 2019)
Logos shown are trademarks of their owners and are provided for identification and reference. To request removal, contact [email protected].



