HEX to OKLCH: #422006

Result

Values are shown at full precision, so converting back gives exactly #422006. 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. 1. sRGB → linear

   R: 66/255 = 0.25882 → 0.054480  (((x + 0.055) / 1.055)^2.4)
   G: 32/255 = 0.12549 → 0.014444  (((x + 0.055) / 1.055)^2.4)
   B: 6/255 = 0.02353 → 0.001821  (÷ 12.92)

2. 2. linear sRGB → LMS

   l = 0.4122·R + 0.5363·G + 0.0514·B = 0.030298
   m = 0.2119·R + 0.6807·G + 0.1074·B = 0.021572
   s = 0.0883·R + 0.2817·G + 0.6300·B = 0.010027

3. 3. cube root

   l′ = ∛0.030298 = 0.311750
   m′ = ∛0.021572 = 0.278375
   s′ = ∛0.010027 = 0.215638

4. 4. LMS′ → Oklab

   L = 0.2105·l′ + 0.7936·m′ − 0.0041·s′ = 0.28565
   a = 1.9780·l′ − 2.4286·m′ + 0.4506·s′ = 0.03775
   b = 0.0259·l′ + 0.7828·m′ − 0.8087·s′ = 0.05160

5. 5. Oklab → OKLCH

   C = √(a² + b²) = 0.06393
   H = atan2(b, a) = 53.813°
   L = 0.28565

6. 6. OKLCH

   oklch(0.28565 0.06393 53.813)
   rounded: oklch(0.286 0.064 53.8)

All formats

HEX

#422006

RGB

rgb(66 32 6)

RGB (legacy)

rgb(66, 32, 6)

HSL

hsl(26.00 83.33% 14.12%) → hsl(26 83% 14%)

HWB

hwb(26 2% 74%)

OKLCH

oklch(0.286 0.064 53.8) · oklch(28.6% 0.064 53.8)

OKLab

oklab(0.286 0.038 0.052)

Lab (D50)

lab(16.79 15.18 22.41)

LCH (D50)

lch(16.79 27.07 55.89)

Display P3

color(display-p3 0.2411 0.1322 0.0466)

Linear sRGB

color(srgb-linear 0.0545 0.0144 0.0018)

Gamut: sRGB and Display P3

#422006 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.072 and Display P3 reaches 0.082; this color uses 89% of the sRGB chroma available.

CSS snippets

.element {
  color: #422006;
  color: rgb(66 32 6);
  color: hsl(26 83% 14%);
  color: oklch(0.286 0.064 53.8);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.286 0.064 53.8);
}
/* arbitrary values */
class="text-[#422006] bg-[oklch(0.286_0.064_53.8)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.2411 0.1322 0.0466); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #422006 calc(l - 0.1) c h); }

Nearby colors

Closest colors in the Tailwind and CSS named palettes (OKLab distance).

• yellow-950#432004
• v3 amber-950#451A03
• amber-950#461901
• v3 orange-950#431407
• orange-950#441306
• v3 red-950#450A0A
• red-950#460809
• olive-800#2B2B22

Lighter and darker, same hue and chroma

• #532F16 · oklch(0.346 0.064 53.8) · ΔL +0.06
• #321100 · oklch(0.226 0.064 53.8) · ΔL −0.06

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