Block Bulletin color palette
Block Bulletin is a 5-color palette drawing on neutrals, blues and oranges. In OKLCH its lightness runs from 25% (#212121, very dark) to 98% (#F5FCF0, very light), and its most saturated color, #F77F00, is vivid. 2 of its 3 chromatic colors sit on the warm side of the hue wheel. 4 of its 10 color pairs reach the WCAG AA ratio of 4.5:1 for body text. It is tagged bold, corporate, orange and warm.
- Jet #212121
- Cerulean #0077B6
- Orange Wheel #F77F00
- Maximum Yellow Red #FCBF49
- Honeydew #F5FCF0
Color codes
| Color | HEX | RGB | HSL | OKLCH |
|---|---|---|---|---|
| Jet | #212121 | rgb(33, 33, 33) | hsl(0, 0%, 13%) | oklch(24.8% 0 0) |
| Cerulean | #0077B6 | rgb(0, 119, 182) | hsl(201, 100%, 36%) | oklch(54.6% 0.131 242.7) |
| Orange Wheel | #F77F00 | rgb(247, 127, 0) | hsl(31, 100%, 48%) | oklch(71.9% 0.179 54.4) |
| Maximum Yellow Red | #FCBF49 | rgb(252, 191, 73) | hsl(40, 97%, 64%) | oklch(84% 0.147 80.5) |
| Honeydew | #F5FCF0 | rgb(245, 252, 240) | hsl(95, 67%, 96%) | oklch(98.3% 0.017 131.9) |
Accessibility
The best text and background pairs in Block Bulletin, by WCAG 2 contrast ratio, with the APCA lightness contrast (Lc) of the text on its background.
| Pair | WCAG 2 | Level | APCA Lc |
|---|---|---|---|
| #F5FCF0 on #212121 | 15.39:1 | AAA | Lc -102.1 |
| #212121 on #FCBF49 | 9.73:1 | AAA | Lc 72.1 |
| #212121 on #F77F00 | 6.13:1 | AA | Lc 50.5 |
Color vision
No pair of colors comes within ΔE 0.06 of another under protanopia, deuteranopia, tritanopia or achromatopsia.
Protanopia
Deuteranopia
Tritanopia
Achromatopsia
Use it in code
Install these colors as Tailwind CSS v4 theme colors with shadcn: npx shadcn@latest add https://getcolors.so/r/palette/212121-0077b6-f77f00-fcbf49-f5fcf0.json.
Make it your own
Edit the colors, build a full light and dark color system from them, or see them on real UI.