HSL to HEX: #20B2AA

Also known as: CSS lightseagreen

hsl(176.71 69.52% 41.18%) → #20B2AA

Values are shown at full precision, so converting back gives exactly #20b2aa. 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. input
```
H = 176.71°, S = 69.52%, L = 41.18%
```
2. C
```
C = (1 − |2L − 1|) × S = 0.57257
```

3. X

X = C × (1 − |(H / 60°) mod 2 − 1|) = 0.54117   (H / 60° = 2.9452, sector 2)

4. m
```
m = L − C / 2 = 0.12552
```

5. (R′, G′, B′) + m

(R′, G′, B′) = (0.00000, 0.57257, 0.54117)
R = round((0.00000 + 0.12552) × 255) = 32
G = round((0.57257 + 0.12552) × 255) = 178
B = round((0.54117 + 0.12552) × 255) = 170

6. RGB → HEX
```
#20B2AA
```

All formats

HEX: #20b2aa
RGB: rgb(32 178 170)
RGB (legacy): rgb(32, 178, 170)
HSL: hsl(176.71 69.52% 41.18%) → hsl(177 70% 41%)
HWB: hwb(177 13% 30%)
OKLCH: oklch(0.691 0.114 189.0) · oklch(69.1% 0.114 189.0)
OKLab: oklab(0.691 -0.113 -0.018)
Lab (D50): lab(65.49 -38.83 -6.92)
LCH (D50): lch(65.49 39.44 190.10)
Display P3: color(display-p3 0.3335 0.6879 0.6640)
Linear sRGB: color(srgb-linear 0.0144 0.4452 0.4020)

Gamut: sRGB and Display P3

#20B2AA is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.120 and Display P3 reaches 0.161; this color uses 95% of the sRGB chroma available.

CSS snippets

.element {
  color: #20b2aa;
  color: rgb(32 178 170);
  color: hsl(177 70% 41%);
  color: oklch(0.691 0.114 189.0);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.691 0.114 189.0);
}
/* arbitrary values */
class="text-[#20b2aa] bg-[oklch(0.691_0.114_189.0)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.3335 0.6879 0.6640); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #20b2aa 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

#3FC5BD · oklch(0.751 0.114 189.0) · ΔL +0.06
#009F97 · oklch(0.631 0.114 189.0) · 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?