RGB to HEX: #FF637E

Also known as: Tailwind rose-400

rgb(255 99 126) → #FF637E

Values are shown at full precision, so converting back gives exactly #ff637e. The rounded form is what you normally paste into CSS.

Step-by-step math

Every number below is computed from the input, nothing is looked up.

1. base 10 → base 16

R = 255 = 15×16 + 15 → FF
G = 99 = 6×16 + 3 → 63
B = 126 = 7×16 + 14 → 7E

2. pairs → HEX
```
FF 63 7E → #FF637E
```

All formats

HEX: #ff637e
RGB: rgb(255 99 126)
RGB (legacy): rgb(255, 99, 126)
HSL: hsl(349.62 100.00% 69.41%) → hsl(350 100% 69%)
HWB: hwb(350 39% 0%)
OKLCH: oklch(0.706 0.190 13.0) · oklch(70.6% 0.190 13.0)
OKLab: oklab(0.706 0.185 0.043)
Lab (D50): lab(63.72 61.77 18.17)
LCH (D50): lch(63.72 64.39 16.39)
Display P3: color(display-p3 0.9283 0.4286 0.5022)
Linear sRGB: color(srgb-linear 1.0000 0.1248 0.2086)

Gamut: sRGB and Display P3

#FF637E is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.190 and Display P3 reaches 0.243; this color uses 100% of the sRGB chroma available.

CSS snippets

.element {
  color: #ff637e;
  color: rgb(255 99 126);
  color: hsl(350 100% 69%);
  color: oklch(0.706 0.190 13.0);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.706 0.190 13.0);
}
/* arbitrary values */
class="text-[#ff637e] bg-[oklch(0.706_0.190_13.0)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.9283 0.4286 0.5022); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #ff637e calc(l - 0.1) c h); }

Nearby colors

Closest colors in the Tailwind and CSS named palettes (OKLab distance).

Lighter and darker, same hue and chroma

#FF7790 · oklch(0.766 0.190 13.0) · ΔL +0.06
#E94F6C · oklch(0.646 0.190 13.0) · ΔL −0.06

Open in the studio

Open in the OKLCH picker Check contrast on white

Other converters for this color

All converters →

Guides: What is OKLCH?