HEX to OKLCH: #FF69B4

Also known as: CSS hotpink

#FF69B4 → oklch(0.728 0.197 352.0)

Values are shown at full precision, so converting back gives exactly #ff69b4. 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. sRGB → linear

R: 255/255 = 1.00000 → 1.000000  (((x + 0.055) / 1.055)^2.4)
G: 105/255 = 0.41176 → 0.141263  (((x + 0.055) / 1.055)^2.4)
B: 180/255 = 0.70588 → 0.456411  (((x + 0.055) / 1.055)^2.4)

2. linear sRGB → LMS

l = 0.4122·R + 0.5363·G + 0.0514·B = 0.511466
m = 0.2119·R + 0.6807·G + 0.1074·B = 0.357079
s = 0.0883·R + 0.2817·G + 0.6300·B = 0.415628

3. cube root

l′ = ∛0.511466 = 0.799722
m′ = ∛0.357079 = 0.709449
s′ = ∛0.415628 = 0.746280

4. LMS′ → Oklab

L = 0.2105·l′ + 0.7936·m′ − 0.0041·s′ = 0.72830
a = 1.9780·l′ − 2.4286·m′ + 0.4506·s′ = 0.19516
b = 0.0259·l′ + 0.7828·m′ − 0.8087·s′ = -0.02745

5. Oklab → OKLCH

C = √(a² + b²) = 0.19708
H = atan2(b, a) = 351.995°
L = 0.72830

6. OKLCH

oklch(0.72830 0.19708 351.995)
rounded: oklch(0.728 0.197 352.0)

All formats

HEX: #ff69b4
RGB: rgb(255 105 180)
RGB (legacy): rgb(255, 105, 180)
HSL: hsl(330.00 100.00% 70.59%) → hsl(330 100% 71%)
HWB: hwb(330 41% 0%)
OKLCH: oklch(0.728 0.197 352.0) · oklch(72.8% 0.197 352.0)
OKLab: oklab(0.728 0.195 -0.027)
Lab (D50): lab(65.86 63.26 -9.64)
LCH (D50): lch(65.86 63.99 351.33)
Display P3: color(display-p3 0.9297 0.4489 0.6964)
Linear sRGB: color(srgb-linear 1.0000 0.1413 0.4564)

Gamut: sRGB and Display P3

#FF69B4 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.197 and Display P3 reaches 0.256; this color uses 100% of the sRGB chroma available.

CSS snippets

.element {
  color: #ff69b4;
  color: rgb(255 105 180);
  color: hsl(330 100% 71%);
  color: oklch(0.728 0.197 352.0);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.728 0.197 352.0);
}
/* arbitrary values */
class="text-[#ff69b4] bg-[oklch(0.728_0.197_352.0)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.9297 0.4489 0.6964); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #ff69b4 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

#FF7DC7 · oklch(0.788 0.197 352.0) · ΔL +0.06
#E955A1 · oklch(0.668 0.197 352.0) · ΔL −0.06

Open in the studio

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