HEX to OKLCH: #A0522D

Result

Values are shown at full precision, so converting back gives exactly #a0522d. 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: 160/255 = 0.62745 → 0.351533  (((x + 0.055) / 1.055)^2.4)
   G: 82/255 = 0.32157 → 0.084376  (((x + 0.055) / 1.055)^2.4)
   B: 45/255 = 0.17647 → 0.026241  (((x + 0.055) / 1.055)^2.4)

2. 2. linear sRGB → LMS

   l = 0.4122·R + 0.5363·G + 0.0514·B = 0.191513
   m = 0.2119·R + 0.6807·G + 0.1074·B = 0.134744
   s = 0.0883·R + 0.2817·G + 0.6300·B = 0.071343

3. 3. cube root

   l′ = ∛0.191513 = 0.576412
   m′ = ∛0.134744 = 0.512668
   s′ = ∛0.071343 = 0.414747

4. 4. LMS′ → Oklab

   L = 0.2105·l′ + 0.7936·m′ − 0.0041·s′ = 0.52648
   a = 1.9780·l′ − 2.4286·m′ + 0.4506·s′ = 0.08196
   b = 0.0259·l′ + 0.7828·m′ − 0.8087·s′ = 0.08084

5. 5. Oklab → OKLCH

   C = √(a² + b²) = 0.11512
   H = atan2(b, a) = 44.604°
   L = 0.52648

6. 6. OKLCH

   oklch(0.52648 0.11512 44.604)
   rounded: oklch(0.526 0.115 44.6)

All formats

HEX

#a0522d

RGB

rgb(160 82 45)

RGB (legacy)

rgb(160, 82, 45)

HSL

hsl(19.30 56.10% 40.20%) → hsl(19 56% 40%)

HWB

hwb(19 18% 37%)

OKLCH

oklch(0.526 0.115 44.6) · oklch(52.6% 0.115 44.6)

OKLab

oklab(0.526 0.082 0.081)

Lab (D50)

lab(44.27 30.91 36.35)

LCH (D50)

lch(44.27 47.71 49.62)

Display P3

color(display-p3 0.5875 0.3376 0.2091)

Linear sRGB

color(srgb-linear 0.3515 0.0844 0.0262)

Gamut: sRGB and Display P3

#A0522D is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.152 and Display P3 reaches 0.172; this color uses 76% of the sRGB chroma available.

CSS snippets

.element {
  color: #a0522d;
  color: rgb(160 82 45);
  color: hsl(19 56% 40%);
  color: oklch(0.526 0.115 44.6);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.526 0.115 44.6);
}
/* arbitrary values */
class="text-[#a0522d] bg-[oklch(0.526_0.115_44.6)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.5875 0.3376 0.2091); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #a0522d calc(l - 0.1) c h); }

Nearby colors

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

• v3 amber-700#B45309
• yellow-700#A65F00
• v3 yellow-700#A16207
• amber-700#BB4D00
• v3 amber-800#92400E
• amber-800#973C00
• saddlebrown#8B4513
• yellow-800#894B00

Lighter and darker, same hue and chroma

• #B4643F · oklch(0.586 0.115 44.6) · ΔL +0.06
• #8D411A · oklch(0.466 0.115 44.6) · ΔL −0.06

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