HEX to HSL: #3CB371

Also known as: CSS mediumseagreen

#3CB371 → hsl(147 50% 47%)

Values are shown at full precision, so converting back gives exactly #3cb371. 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 = 0.2353
G = 0.7020
B = 0.4431
```

2. max, min, Δ

max = 0.7020
min = 0.2353
Δ = max − min = 0.4667

3. L
```
L = (max + min) / 2 = 0.4686 = 46.86%
```

4. S

S = Δ / (1 − |2L − 1|) = 0.4979 = 49.79%

5. H

max is G → H = 60° × ((B − R) / Δ + 2) = 60° × ((0.4431 − 0.2353) / 0.4667 + 2) = 146.72°

6. HSL
```
hsl(146.72 49.79% 46.86%)
```

All formats

HEX: #3cb371
RGB: rgb(60 179 113)
RGB (legacy): rgb(60, 179, 113)
HSL: hsl(146.72 49.79% 46.86%) → hsl(147 50% 47%)
HWB: hwb(147 24% 30%)
OKLCH: oklch(0.684 0.144 155.0) · oklch(68.4% 0.144 155.0)
OKLab: oklab(0.684 -0.131 0.061)
Lab (D50): lab(65.22 -45.97 23.71)
LCH (D50): lch(65.22 51.73 152.72)
Display P3: color(display-p3 0.3768 0.6925 0.4658)
Linear sRGB: color(srgb-linear 0.0452 0.4508 0.1651)

Gamut: sRGB and Display P3

#3CB371 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.169 and Display P3 reaches 0.234; this color uses 85% of the sRGB chroma available.

CSS snippets

.element {
  color: #3cb371;
  color: rgb(60 179 113);
  color: hsl(147 50% 47%);
  color: oklch(0.684 0.144 155.0);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.684 0.144 155.0);
}
/* arbitrary values */
class="text-[#3cb371] bg-[oklch(0.684_0.144_155.0)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.3768 0.6925 0.4658); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #3cb371 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

#52C683 · oklch(0.744 0.144 155.0) · ΔL +0.06
#21A05F · oklch(0.624 0.144 155.0) · 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?