HEX to HSL: #2A212C

Also known as: Tailwind mauve-800

#2A212C → hsl(289 14% 15%)

Values are shown at full precision, so converting back gives exactly #2a212c. 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. RGB ÷ 255
```
R = 0.1647
G = 0.1294
B = 0.1725
```

2. max, min, Δ

max = 0.1725
min = 0.1294
Δ = max − min = 0.0431

3. L
```
L = (max + min) / 2 = 0.1510 = 15.10%
```

4. S

S = Δ / (1 − |2L − 1|) = 0.1429 = 14.29%

5. H

max is B → H = 60° × ((R − G) / Δ + 4) = 60° × ((0.1647 − 0.1294) / 0.0431 + 4) = 289.09°

6. HSL
```
hsl(289.09 14.29% 15.10%)
```

All formats

HEX: #2a212c
RGB: rgb(42 33 44)
RGB (legacy): rgb(42, 33, 44)
HSL: hsl(289.09 14.29% 15.10%) → hsl(289 14% 15%)
HWB: hwb(289 13% 83%)
OKLCH: oklch(0.263 0.024 320.1) · oklch(26.3% 0.024 320.1)
OKLab: oklab(0.263 0.018 -0.015)
Lab (D50): lab(14.16 6.34 -5.67)
LCH (D50): lch(14.16 8.51 318.22)
Display P3: color(display-p3 0.1590 0.1307 0.1697)
Linear sRGB: color(srgb-linear 0.0232 0.0152 0.0252)

Gamut: sRGB and Display P3

#2A212C is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.126 and Display P3 reaches 0.136; this color uses 19% of the sRGB chroma available.

CSS snippets

.element {
  color: #2a212c;
  color: rgb(42 33 44);
  color: hsl(289 14% 15%);
  color: oklch(0.263 0.024 320.1);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.263 0.024 320.1);
}
/* arbitrary values */
class="text-[#2a212c] bg-[oklch(0.263_0.024_320.1)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.1590 0.1307 0.1697); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #2a212c 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

#39303B · oklch(0.323 0.024 320.1) · ΔL +0.06
#1C131D · oklch(0.203 0.024 320.1) · 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?