GitHub
Reference value (#181717), not official GitHub brand guidelines. Confirm against their materials before shipping in their identity.
The widely cited anchor color for GitHub is #181717 — a near-black grey tone in the SaaS & tech sector. It passes AA body text on white at 17.89:1; on dark grounds it fails on black at 1.17:1 and wants a lighter step there.
Use it as a seed, not a rule: open it in the generator to derive scales, accessible text steps, and themes in the same family, and confirm the current value against GitHub's own materials before shipping anything in their identity. Sector neighbors like Slack, Microsoft Teams, Zoom make useful comparisons when positioning against competitors.
Sector: SaaS & tech
Values in every format
- HEX
- #181717
- RGB
- rgb(24, 23, 23)
- HSL
- hsl(0, 2%, 9%)
- OKLCH
- oklch(0.206 0.002 17.3)
- CMYK
- cmyk(0%, 4.2%, 4.2%, 90.6%)
Scale derived from the anchor
- 50#f8f7f7
- 100#ededed
- 200#dfdede
- 300#cdcccc
- 400#b3b2b2
- 500#9a9999
- 600#838181
- 700#6a6868
- 800#535252
- 900#3f3e3e
- 950 ★#181717
Measured contrast
on white17.89:1 · AA normal ✓
on black1.17:1 · fails AA