OKLCH to HEX: #1D161E

Result

Values are shown at full precision, so converting back gives exactly #1d161e. 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. input

   oklch(0.21232 0.01877 322.116)

2. 2. OKLCH → Oklab

   a = C·cos H = 0.01481
   b = C·sin H = -0.01153

3. 3. Oklab → LMS′

   l′ = L + 0.3963·a + 0.2158·b = 0.215704
   m′ = L − 0.1056·a − 0.0639·b = 0.211492
   s′ = L − 0.0895·a − 1.2915·b = 0.225880

4. 4. cube

   l = 0.215704³ = 0.010036
   m = 0.211492³ = 0.009460
   s = 0.225880³ = 0.011525

5. 5. LMS → linear sRGB

   R = 4.0767·l − 3.3077·m + 0.2310·s = 0.012287
   G = −1.2684·l + 2.6098·m − 0.3413·s = 0.008024
   B = −0.0042·l − 0.7034·m + 1.7076·s = 0.012984

6. 6. linear → sRGB, × 255

   R = 0.11373 × 255 = 29.00 → 29
   G = 0.08628 × 255 = 22.00 → 22
   B = 0.11765 × 255 = 30.00 → 30

7. 7. RGB → HEX

   #1D161E

All formats

HEX

#1d161e

RGB

rgb(29 22 30)

RGB (legacy)

rgb(29, 22, 30)

HSL

hsl(292.50 15.38% 10.20%) → hsl(293 15% 10%)

HWB

hwb(293 9% 88%)

OKLCH

oklch(0.212 0.019 322.1) · oklch(21.2% 0.019 322.1)

OKLab

oklab(0.212 0.015 -0.012)

Lab (D50)

lab(8.37 5.09 -4.26)

LCH (D50)

lch(8.37 6.64 320.08)

Display P3

color(display-p3 0.1093 0.0873 0.1156)

Linear sRGB

color(srgb-linear 0.0123 0.0080 0.0130)

Gamut: sRGB and Display P3

#1D161E is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.101 and Display P3 reaches 0.109; this color uses 19% of the sRGB chroma available.

CSS snippets

.element {
  color: #1d161e;
  color: rgb(29 22 30);
  color: hsl(293 15% 10%);
  color: oklch(0.212 0.019 322.1);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.212 0.019 322.1);
}
/* arbitrary values */
class="text-[#1d161e] bg-[oklch(0.212_0.019_322.1)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.1093 0.0873 0.1156); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #1d161e calc(l - 0.1) c h); }

Nearby colors

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

• zinc-900#18181B
• taupe-900#1D1816
• neutral-900#171717
• stone-900#1C1917
• mist-900#161B1D
• v3 gray-900#111827
• gray-900#101828
• v3 slate-900#0F172A

Lighter and darker, same hue and chroma

• #2B242D · oklch(0.272 0.019 322.1) · ΔL +0.06
• #0F0910 · oklch(0.152 0.019 322.1) · ΔL −0.06

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