HEX to HSL: #2E8B57

Also known as: CSS seagreen

#2E8B57 → hsl(146 50% 36%)

Values are shown at full precision, so converting back gives exactly #2e8b57. 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 = 0.1804
G = 0.5451
B = 0.3412
```

2. max, min, Δ

max = 0.5451
min = 0.1804
Δ = max − min = 0.3647

3. L
```
L = (max + min) / 2 = 0.3627 = 36.27%
```

4. S

S = Δ / (1 − |2L − 1|) = 0.5027 = 50.27%

5. H

max is G → H = 60° × ((B − R) / Δ + 2) = 60° × ((0.3412 − 0.1804) / 0.3647 + 2) = 146.45°

6. HSL
```
hsl(146.45 50.27% 36.27%)
```

All formats

HEX: #2e8b57
RGB: rgb(46 139 87)
RGB (legacy): rgb(46, 139, 87)
HSL: hsl(146.45 50.27% 36.27%) → hsl(146 50% 36%)
HWB: hwb(146 18% 45%)
OKLCH: oklch(0.569 0.119 154.9) · oklch(56.9% 0.119 154.9)
OKLab: oklab(0.569 -0.108 0.050)
Lab (D50): lab(51.49 -37.86 19.58)
LCH (D50): lch(51.49 42.63 152.66)
Display P3: color(display-p3 0.2898 0.5376 0.3590)
Linear sRGB: color(srgb-linear 0.0273 0.2582 0.0953)

Gamut: sRGB and Display P3

#2E8B57 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.141 and Display P3 reaches 0.195; this color uses 84% of the sRGB chroma available.

CSS snippets

.element {
  color: #2e8b57;
  color: rgb(46 139 87);
  color: hsl(146 50% 36%);
  color: oklch(0.569 0.119 154.9);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.569 0.119 154.9);
}
/* arbitrary values */
class="text-[#2e8b57] bg-[oklch(0.569_0.119_154.9)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.2898 0.5376 0.3590); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #2e8b57 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

#439E68 · oklch(0.629 0.119 154.9) · ΔL +0.06
#147946 · oklch(0.509 0.119 154.9) · 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?