OKLCH to HEX: #20B2AA

Also known as: CSS lightseagreen

oklch(0.69120 0.11421 188.962) → #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
```
oklch(0.69120 0.11421 188.962)
```

2. OKLCH → Oklab

a = C·cos H = -0.11282
b = C·sin H = -0.01779

3. Oklab → LMS′

l′ = L + 0.3963·a + 0.2158·b = 0.642647
m′ = L − 0.1056·a − 0.0639·b = 0.704245
s′ = L − 0.0895·a − 1.2915·b = 0.724273

4. cube

l = 0.642647³ = 0.265411
m = 0.704245³ = 0.349278
s = 0.724273³ = 0.379933

5. LMS → linear sRGB

R = 4.0767·l − 3.3077·m + 0.2310·s = 0.014452
G = −1.2684·l + 2.6098·m − 0.3413·s = 0.445196
B = −0.0042·l − 0.7034·m + 1.7076·s = 0.401976

6. linear → sRGB, × 255

R = 0.12553 × 255 = 32.01 → 32
G = 0.69804 × 255 = 178.00 → 178
B = 0.66667 × 255 = 170.00 → 170

7. 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?