HEX to OKLCH: #9A3412

Result

Values are shown at full precision, so converting back gives exactly #9a3412. 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: 154/255 = 0.60392 → 0.323143  (((x + 0.055) / 1.055)^2.4)
   G: 52/255 = 0.20392 → 0.034340  (((x + 0.055) / 1.055)^2.4)
   B: 18/255 = 0.07059 → 0.006049  (((x + 0.055) / 1.055)^2.4)

2. 2. linear sRGB → LMS

   l = 0.4122·R + 0.5363·G + 0.0514·B = 0.151935
   m = 0.2119·R + 0.6807·G + 0.1074·B = 0.092500
   s = 0.0883·R + 0.2817·G + 0.6300·B = 0.042019

3. 3. cube root

   l′ = ∛0.151935 = 0.533605
   m′ = ∛0.092500 = 0.452252
   s′ = ∛0.042019 = 0.347655

4. 4. LMS′ → Oklab

   L = 0.2105·l′ + 0.7936·m′ − 0.0041·s′ = 0.46980
   a = 1.9780·l′ − 2.4286·m′ + 0.4506·s′ = 0.11379
   b = 0.0259·l′ + 0.7828·m′ − 0.8087·s′ = 0.08669

5. 5. Oklab → OKLCH

   C = √(a² + b²) = 0.14305
   H = atan2(b, a) = 37.304°
   L = 0.46980

6. 6. OKLCH

   oklch(0.46980 0.14305 37.304)
   rounded: oklch(0.470 0.143 37.3)

All formats

HEX

#9a3412

RGB

rgb(154 52 18)

RGB (legacy)

rgb(154, 52, 18)

HSL

hsl(15.00 79.07% 33.73%) → hsl(15 79% 34%)

HWB

hwb(15 7% 40%)

OKLCH

oklch(0.470 0.143 37.3) · oklch(47.0% 0.143 37.3)

OKLab

oklab(0.470 0.114 0.087)

Lab (D50)

lab(37.28 42.22 42.83)

LCH (D50)

lch(37.28 60.14 45.41)

Display P3

color(display-p3 0.5582 0.2319 0.1206)

Linear sRGB

color(srgb-linear 0.3231 0.0343 0.0060)

Gamut: sRGB and Display P3

#9A3412 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.156 and Display P3 reaches 0.176; this color uses 92% of the sRGB chroma available.

CSS snippets

.element {
  color: #9a3412;
  color: rgb(154 52 18);
  color: hsl(15 79% 34%);
  color: oklch(0.470 0.143 37.3);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.470 0.143 37.3);
}
/* arbitrary values */
class="text-[#9a3412] bg-[oklch(0.470_0.143_37.3)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.5582 0.2319 0.1206); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #9a3412 calc(l - 0.1) c h); }

Nearby colors

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

• orange-800#9F2D00
• amber-800#973C00
• v3 amber-800#92400E
• brown#A52A2A
• v3 red-800#991B1B
• saddlebrown#8B4513
• red-800#9F0712
• firebrick#B22222

Lighter and darker, same hue and chroma

• #AE4727 · oklch(0.530 0.143 37.3) · ΔL +0.06
• #862000 · oklch(0.410 0.143 37.3) · ΔL −0.06

Open in the studio