HEX to OKLCH: #FFC9C9

Also known as: Tailwind red-200

#FFC9C9 → oklch(0.883 0.062 18.4)

Values are shown at full precision, so converting back gives exactly #ffc9c9. 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: 201/255 = 0.78824 → 0.584078  (((x + 0.055) / 1.055)^2.4)
B: 201/255 = 0.78824 → 0.584078  (((x + 0.055) / 1.055)^2.4)

2. linear sRGB → LMS

l = 0.4122·R + 0.5363·G + 0.0514·B = 0.755530
m = 0.2119·R + 0.6807·G + 0.1074·B = 0.672214
s = 0.0883·R + 0.2817·G + 0.6300·B = 0.620805

3. cube root

l′ = ∛0.755530 = 0.910788
m′ = ∛0.672214 = 0.875997
s′ = ∛0.620805 = 0.853071

4. LMS′ → Oklab

L = 0.2105·l′ + 0.7936·m′ − 0.0041·s′ = 0.88341
a = 1.9780·l′ − 2.4286·m′ + 0.4506·s′ = 0.05849
b = 0.0259·l′ + 0.7828·m′ − 0.8087·s′ = 0.01944

5. Oklab → OKLCH

C = √(a² + b²) = 0.06163
H = atan2(b, a) = 18.386°
L = 0.88341

6. OKLCH

oklch(0.88341 0.06163 18.386)
rounded: oklch(0.883 0.062 18.4)

All formats

HEX: #ffc9c9
RGB: rgb(255 201 201)
RGB (legacy): rgb(255, 201, 201)
HSL: hsl(0.00 100.00% 89.41%) → hsl(0 100% 89%)
HWB: hwb(0 79% 0%)
OKLCH: oklch(0.883 0.062 18.4) · oklch(88.3% 0.062 18.4)
OKLab: oklab(0.883 0.058 0.019)
Lab (D50): lab(85.84 19.76 7.73)
LCH (D50): lch(85.84 21.22 21.37)
Display P3: color(display-p3 0.9668 0.7965 0.7925)
Linear sRGB: color(srgb-linear 1.0000 0.5841 0.5841)

Gamut: sRGB and Display P3

#FFC9C9 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.062 and Display P3 reaches 0.080; this color uses 100% of the sRGB chroma available.

CSS snippets

.element {
  color: #ffc9c9;
  color: rgb(255 201 201);
  color: hsl(0 100% 89%);
  color: oklch(0.883 0.062 18.4);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.883 0.062 18.4);
}
/* arbitrary values */
class="text-[#ffc9c9] bg-[oklch(0.883_0.062_18.4)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.9668 0.7965 0.7925); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #ffc9c9 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

#FFDDDC · oklch(0.943 0.062 18.4) · ΔL +0.06
#EBB6B6 · oklch(0.823 0.062 18.4) · ΔL −0.06

Open in the studio

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