HEX to OKLCH: #D2691E

Also known as: CSS chocolate

#D2691E → oklch(0.634 0.155 50.3)

Values are shown at full precision, so converting back gives exactly #d2691e. 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: 210/255 = 0.82353 → 0.644480  (((x + 0.055) / 1.055)^2.4)
G: 105/255 = 0.41176 → 0.141263  (((x + 0.055) / 1.055)^2.4)
B: 30/255 = 0.11765 → 0.012983  (((x + 0.055) / 1.055)^2.4)

2. linear sRGB → LMS

l = 0.4122·R + 0.5363·G + 0.0514·B = 0.342100
m = 0.2119·R + 0.6807·G + 0.1074·B = 0.234120
s = 0.0883·R + 0.2817·G + 0.6300·B = 0.104885

3. cube root

l′ = ∛0.342100 = 0.699387
m′ = ∛0.234120 = 0.616329
s′ = ∛0.104885 = 0.471597

4. LMS′ → Oklab

L = 0.2105·l′ + 0.7936·m′ − 0.0041·s′ = 0.63440
a = 1.9780·l′ − 2.4286·m′ + 0.4506·s′ = 0.09907
b = 0.0259·l′ + 0.7828·m′ − 0.8087·s′ = 0.11919

5. Oklab → OKLCH

C = √(a² + b²) = 0.15499
H = atan2(b, a) = 50.266°
L = 0.63440

6. OKLCH

oklch(0.63440 0.15499 50.266)
rounded: oklch(0.634 0.155 50.3)

All formats

HEX: #d2691e
RGB: rgb(210 105 30)
RGB (legacy): rgb(210, 105, 30)
HSL: hsl(25.00 75.00% 47.06%) → hsl(25 75% 47%)
HWB: hwb(25 12% 18%)
OKLCH: oklch(0.634 0.155 50.3) · oklch(63.4% 0.155 50.3)
OKLab: oklab(0.634 0.099 0.119)
Lab (D50): lab(56.63 39.24 57.55)
LCH (D50): lch(56.63 69.66 55.72)
Display P3: color(display-p3 0.7706 0.4340 0.1998)
Linear sRGB: color(srgb-linear 0.6445 0.1413 0.0130)

Gamut: sRGB and Display P3

#D2691E is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.167 and Display P3 reaches 0.190; this color uses 93% of the sRGB chroma available.

CSS snippets

.element {
  color: #d2691e;
  color: rgb(210 105 30);
  color: hsl(25 75% 47%);
  color: oklch(0.634 0.155 50.3);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.634 0.155 50.3);
}
/* arbitrary values */
class="text-[#d2691e] bg-[oklch(0.634_0.155_50.3)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.7706 0.4340 0.1998); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #d2691e 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

#E77C36 · oklch(0.694 0.155 50.3) · ΔL +0.06
#BE5600 · oklch(0.574 0.155 50.3) · 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?