ColorWell · contrast check
White or black text on #f43f5e?
Tailwind rose-500
Use black text. It gives 5.72:1, which passes AA, not AAA.
White text
3.67:1
passes AA for large text only (18pt+/14pt bold)
Black text
5.72:1
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
#b90239— 6.71:1
The colour itself
- Hex:
#f43f5e - RGB:
244, 63, 94 - Oklch:
64.5% 0.215 16
Shade ramp
#ffd1d6 #ffb5bc #ff919d #ff6478 #e8204e #b90239 #8d0025 #630012 #3c0003
Paste this into your config
// tailwind.config.js
colors: {
brand: {
100: "#ffd1d6",
200: "#ffb5bc",
300: "#ff919d",
400: "#ff6478",
500: "#e8204e",
600: "#b90239",
700: "#8d0025",
800: "#630012",
900: "#3c0003",
},
}Text colour to pair with the 500 shade (#e8204e): black, at 4.75:1. For #f43f5e itself it is black, at 5.72:1.
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