OKLCH to HEX: #1D1816

Also known as: Tailwind taupe-900

oklch(0.21422 0.00892 43.066) → #1D1816

Values are shown at full precision, so converting back gives exactly #1d1816. 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. input
```
oklch(0.21422 0.00892 43.066)
```

2. OKLCH → Oklab

a = C·cos H = 0.00652
b = C·sin H = 0.00609

3. Oklab → LMS′

l′ = L + 0.3963·a + 0.2158·b = 0.218117
m′ = L − 0.1056·a − 0.0639·b = 0.213143
s′ = L − 0.0895·a − 1.2915·b = 0.205771

4. cube

l = 0.218117³ = 0.010377
m = 0.213143³ = 0.009683
s = 0.205771³ = 0.008713

5. LMS → linear sRGB

R = 4.0767·l − 3.3077·m + 0.2310·s = 0.012288
G = −1.2684·l + 2.6098·m − 0.3413·s = 0.009134
B = −0.0042·l − 0.7034·m + 1.7076·s = 0.008023

6. linear → sRGB, × 255

R = 0.11373 × 255 = 29.00 → 29
G = 0.09412 × 255 = 24.00 → 24
B = 0.08627 × 255 = 22.00 → 22

7. RGB → HEX
```
#1D1816
```

All formats

HEX: #1d1816
RGB: rgb(29 24 22)
RGB (legacy): rgb(29, 24, 22)
HSL: hsl(17.14 13.73% 10.00%) → hsl(17 14% 10%)
HWB: hwb(17 9% 89%)
OKLCH: oklch(0.214 0.009 43.1) · oklch(21.4% 0.009 43.1)
OKLab: oklab(0.214 0.007 0.006)
Lab (D50): lab(8.80 2.24 2.36)
LCH (D50): lch(8.80 3.25 46.46)
Display P3: color(display-p3 0.1105 0.0948 0.0874)
Linear sRGB: color(srgb-linear 0.0123 0.0091 0.0080)

Gamut: sRGB and Display P3

#1D1816 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.063 and Display P3 reaches 0.072; this color uses 14% of the sRGB chroma available.

CSS snippets

.element {
  color: #1d1816;
  color: rgb(29 24 22);
  color: hsl(17 14% 10%);
  color: oklch(0.214 0.009 43.1);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.214 0.009 43.1);
}
/* arbitrary values */
class="text-[#1d1816] bg-[oklch(0.214_0.009_43.1)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.1105 0.0948 0.0874); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #1d1816 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

#2B2624 · oklch(0.274 0.009 43.1) · ΔL +0.06
#0F0B09 · oklch(0.154 0.009 43.1) · ΔL −0.06

Open in the studio

Open in the OKLCH picker Check contrast on white

Other converters for this color

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Guides: What is OKLCH?