HEX to HSL: #042F2E

Also known as: Tailwind v3 teal-950

#042F2E → hsl(179 84% 10%)

Values are shown at full precision, so converting back gives exactly #042f2e. 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 = 0.0157
G = 0.1843
B = 0.1804
```

2. max, min, Δ

max = 0.1843
min = 0.0157
Δ = max − min = 0.1686

3. L
```
L = (max + min) / 2 = 0.1000 = 10.00%
```

4. S

S = Δ / (1 − |2L − 1|) = 0.8431 = 84.31%

5. H

max is G → H = 60° × ((B − R) / Δ + 2) = 60° × ((0.1804 − 0.0157) / 0.1686 + 2) = 178.60°

6. HSL
```
hsl(178.60 84.31% 10.00%)
```

All formats

HEX: #042f2e
RGB: rgb(4 47 46)
RGB (legacy): rgb(4, 47, 46)
HSL: hsl(178.60 84.31% 10.00%) → hsl(179 84% 10%)
HWB: hwb(179 2% 82%)
OKLCH: oklch(0.277 0.045 192.5) · oklch(27.7% 0.045 192.5)
OKLab: oklab(0.277 -0.044 -0.010)
Lab (D50): lab(16.65 -14.87 -3.71)
LCH (D50): lch(16.65 15.32 194.01)
Display P3: color(display-p3 0.0706 0.1811 0.1791)
Linear sRGB: color(srgb-linear 0.0012 0.0284 0.0273)

Gamut: sRGB and Display P3

#042F2E is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.048 and Display P3 reaches 0.064; this color uses 94% of the sRGB chroma available.

CSS snippets

.element {
  color: #042f2e;
  color: rgb(4 47 46);
  color: hsl(179 84% 10%);
  color: oklch(0.277 0.045 192.5);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.277 0.045 192.5);
}
/* arbitrary values */
class="text-[#042f2e] bg-[oklch(0.277_0.045_192.5)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.0706 0.1811 0.1791); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #042f2e 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

#173F3D · oklch(0.337 0.045 192.5) · ΔL +0.06
#00201F · oklch(0.217 0.045 192.5) · 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?