ColorWell · contrast check
White or black text on #6b7280?
Tailwind gray-500
Use white text. It gives 4.83:1, which passes AA, not AAA.
White text
4.83:1
passes AA, not AAA
Black text
4.34:1
passes AA for large text only (18pt+/14pt bold)
What the thresholds mean
| Level | Needs | White text | Black text |
|---|---|---|---|
| AA, normal text | 4.5:1 | pass | fail |
| AA, large text (18pt+/14pt bold) | 3:1 | pass | pass |
| AAA, normal text | 7:1 | fail | fail |
If you need the other one to pass
Same hue, moved along the lightness ramp until the ratio clears AA.
- For black text, use
#edf2fb— 18.69:1
The colour itself
- Hex:
#6b7280 - RGB:
107, 114, 128 - Oklch:
55.1% 0.023 264
Shade ramp
#edf2fb #d9dee9 #bec4d1 #9ea5b3 #79808f #5d6370 #434852 #2a2e36 #13161c
Paste this into your config
// tailwind.config.js
colors: {
brand: {
100: "#edf2fb",
200: "#d9dee9",
300: "#bec4d1",
400: "#9ea5b3",
500: "#79808f",
600: "#5d6370",
700: "#434852",
800: "#2a2e36",
900: "#13161c",
},
}Text colour to pair with the 500 shade (#79808f): black, at 5.3:1. For #6b7280 itself it is white, at 4.83:1.
Your own colours, the same way
Paste any hex and get this page for it live — ratio, verdict, ramp. Export the whole palette to CSS variables, a Tailwind config or Figma tokens when you want it in the project rather than on the screen.
Open ColorWellOther colours
- text on #ef4444 Tailwind red-500
- text on #f97316 Tailwind orange-500
- text on #f59e0b Tailwind amber-500
- text on #eab308 Tailwind yellow-500
- text on #84cc16 Tailwind lime-500
- text on #22c55e Tailwind green-500
- text on #10b981 Tailwind emerald-500
- text on #14b8a6 Tailwind teal-500
- text on #06b6d4 Tailwind cyan-500
- text on #0ea5e9 Tailwind sky-500
- text on #3b82f6 Tailwind blue-500
- text on #6366f1 Tailwind indigo-500