ColorWell · contrast check
White or black text on #0284c7?
Tailwind sky-600
Use black text. It gives 5.13:1, which passes AA, not AAA.
White text
4.1:1
passes AA for large text only (18pt+/14pt bold)
Black text
5.13:1
passes AA, not AAA
What the thresholds mean
| Level | Needs | White text | Black text |
|---|---|---|---|
| AA, normal text | 4.5:1 | fail | pass |
| 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 white text, use
#0069a5— 5.89:1
The colour itself
- Hex:
#0284c7 - RGB:
2, 132, 199 - Oklch:
58.76% 0.139 242
Shade ramp
#c5f9ff #a6e6ff #80cdff #51adee #0088cf #0069a5 #004c7d #003158 #001735
Paste this into your config
// tailwind.config.js
colors: {
brand: {
100: "#c5f9ff",
200: "#a6e6ff",
300: "#80cdff",
400: "#51adee",
500: "#0088cf",
600: "#0069a5",
700: "#004c7d",
800: "#003158",
900: "#001735",
},
}Text colour to pair with the 500 shade (#0088cf): black, at 5.42:1. For #0284c7 itself it is black, at 5.13:1.
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
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- 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