HEX to OKLCH: #D08700

Also known as: Tailwind yellow-600

#D08700 → oklch(0.682 0.146 71.5)

Values are shown at full precision, so converting back gives exactly #d08700. 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: 208/255 = 0.81569 → 0.630757  (((x + 0.055) / 1.055)^2.4)
G: 135/255 = 0.52941 → 0.242281  (((x + 0.055) / 1.055)^2.4)
B: 0/255 = 0.00000 → 0.000000  (÷ 12.92)

2. linear sRGB → LMS

l = 0.4122·R + 0.5363·G + 0.0514·B = 0.389955
m = 0.2119·R + 0.6807·G + 0.1074·B = 0.298580
s = 0.0883·R + 0.2817·G + 0.6300·B = 0.123953

3. cube root

l′ = ∛0.389955 = 0.730586
m′ = ∛0.298580 = 0.668375
s′ = ∛0.123953 = 0.498599

4. LMS′ → Oklab

L = 0.2105·l′ + 0.7936·m′ − 0.0041·s′ = 0.68216
a = 1.9780·l′ − 2.4286·m′ + 0.4506·s′ = 0.04655
b = 0.0259·l′ + 0.7828·m′ − 0.8087·s′ = 0.13891

5. Oklab → OKLCH

C = √(a² + b²) = 0.14650
H = atan2(b, a) = 71.472°
L = 0.68216

6. OKLCH

oklch(0.68216 0.14650 71.472)
rounded: oklch(0.682 0.146 71.5)

All formats

HEX: #d08700
RGB: rgb(208 135 0)
RGB (legacy): rgb(208, 135, 0)
HSL: hsl(38.94 100.00% 40.78%) → hsl(39 100% 41%)
HWB: hwb(39 0% 18%)
OKLCH: oklch(0.682 0.146 71.5) · oklch(68.2% 0.146 71.5)
OKLab: oklab(0.682 0.047 0.139)
Lab (D50): lab(62.85 22.94 68.03)
LCH (D50): lch(62.85 71.79 71.37)
Display P3: color(display-p3 0.7747 0.5422 0.1839)
Linear sRGB: color(srgb-linear 0.6308 0.2423 0.0000)

Gamut: sRGB and Display P3

#D08700 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.146 and Display P3 reaches 0.168; this color uses 100% of the sRGB chroma available.

CSS snippets

.element {
  color: #d08700;
  color: rgb(208 135 0);
  color: hsl(39 100% 41%);
  color: oklch(0.682 0.146 71.5);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.682 0.146 71.5);
}
/* arbitrary values */
class="text-[#d08700] bg-[oklch(0.682_0.146_71.5)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.7747 0.5422 0.1839); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #d08700 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

#E49A2B · oklch(0.742 0.146 71.5) · ΔL +0.06
#BC7500 · oklch(0.622 0.146 71.5) · ΔL −0.06

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