HEX to OKLCH: #FF1493

Also known as: CSS deeppink

#FF1493 → oklch(0.655 0.261 356.9)

Values are shown at full precision, so converting back gives exactly #ff1493. 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: 20/255 = 0.07843 → 0.006995  (((x + 0.055) / 1.055)^2.4)
B: 147/255 = 0.57647 → 0.291771  (((x + 0.055) / 1.055)^2.4)

2. linear sRGB → LMS

l = 0.4122·R + 0.5363·G + 0.0514·B = 0.430984
m = 0.2119·R + 0.6807·G + 0.1074·B = 0.248001
s = 0.0883·R + 0.2817·G + 0.6300·B = 0.274082

3. cube root

l′ = ∛0.430984 = 0.755359
m′ = ∛0.248001 = 0.628277
s′ = ∛0.274082 = 0.649572

4. LMS′ → Oklab

L = 0.2105·l′ + 0.7936·m′ − 0.0041·s′ = 0.65493
a = 1.9780·l′ − 2.4286·m′ + 0.4506·s′ = 0.26097
b = 0.0259·l′ + 0.7828·m′ − 0.8087·s′ = -0.01393

5. Oklab → OKLCH

C = √(a² + b²) = 0.26134
H = atan2(b, a) = 356.945°
L = 0.65493

6. OKLCH

oklch(0.65493 0.26134 356.945)
rounded: oklch(0.655 0.261 356.9)

All formats

HEX: #ff1493
RGB: rgb(255 20 147)
RGB (legacy): rgb(255, 20, 147)
HSL: hsl(327.57 100.00% 53.92%) → hsl(328 100% 54%)
HWB: hwb(328 8% 0%)
OKLCH: oklch(0.655 0.261 356.9) · oklch(65.5% 0.261 356.9)
OKLab: oklab(0.655 0.261 -0.014)
Lab (D50): lab(56.60 83.45 -4.12)
LCH (D50): lch(56.60 83.55 357.17)
Display P3: color(display-p3 0.9181 0.2208 0.5687)
Linear sRGB: color(srgb-linear 1.0000 0.0070 0.2918)

Gamut: sRGB and Display P3

#FF1493 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.261 and Display P3 reaches 0.301; this color uses 100% of the sRGB chroma available.

CSS snippets

.element {
  color: #ff1493;
  color: rgb(255 20 147);
  color: hsl(328 100% 54%);
  color: oklch(0.655 0.261 356.9);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.655 0.261 356.9);
}
/* arbitrary values */
class="text-[#ff1493] bg-[oklch(0.655_0.261_356.9)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.9181 0.2208 0.5687); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #ff1493 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

#FF39A5 · oklch(0.715 0.261 356.9) · ΔL +0.06
#E90081 · oklch(0.595 0.261 356.9) · ΔL −0.06

Open in the studio

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