HEX to HSL: #0D542B

Also known as: Tailwind green-900

#0D542B → hsl(145 73% 19%)

Values are shown at full precision, so converting back gives exactly #0d542b. 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 = 0.0510
G = 0.3294
B = 0.1686
```

2. max, min, Δ

max = 0.3294
min = 0.0510
Δ = max − min = 0.2784

3. L
```
L = (max + min) / 2 = 0.1902 = 19.02%
```

4. S

S = Δ / (1 − |2L − 1|) = 0.7320 = 73.20%

5. H

max is G → H = 60° × ((B − R) / Δ + 2) = 60° × ((0.1686 − 0.0510) / 0.2784 + 2) = 145.35°

6. HSL
```
hsl(145.35 73.20% 19.02%)
```

All formats

HEX: #0d542b
RGB: rgb(13 84 43)
RGB (legacy): rgb(13, 84, 43)
HSL: hsl(145.35 73.20% 19.02%) → hsl(145 73% 19%)
HWB: hwb(145 5% 67%)
OKLCH: oklch(0.393 0.096 152.3) · oklch(39.3% 0.096 152.3)
OKLab: oklab(0.393 -0.085 0.045)
Lab (D50): lab(30.86 -29.83 17.69)
LCH (D50): lch(30.86 34.68 149.33)
Display P3: color(display-p3 0.1476 0.3243 0.1845)
Linear sRGB: color(srgb-linear 0.0040 0.0887 0.0242)

Gamut: sRGB and Display P3

#0D542B is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.103 and Display P3 reaches 0.143; this color uses 93% of the sRGB chroma available.

CSS snippets

.element {
  color: #0d542b;
  color: rgb(13 84 43);
  color: hsl(145 73% 19%);
  color: oklch(0.393 0.096 152.3);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.393 0.096 152.3);
}
/* arbitrary values */
class="text-[#0d542b] bg-[oklch(0.393_0.096_152.3)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.1476 0.3243 0.1845); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #0d542b 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

#23653B · oklch(0.453 0.096 152.3) · ΔL +0.06
#00431B · oklch(0.333 0.096 152.3) · 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?