OKLCH to HEX: #104E64

Also known as: Tailwind cyan-900

oklch(0.39716 0.06981 227.191) → #104E64

Values are shown at full precision, so converting back gives exactly #104e64. 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(0.39716 0.06981 227.191)
```

2. OKLCH → Oklab

a = C·cos H = -0.04744
b = C·sin H = -0.05121

3. Oklab → LMS′

l′ = L + 0.3963·a + 0.2158·b = 0.367306
m′ = L − 0.1056·a − 0.0639·b = 0.405438
s′ = L − 0.0895·a − 1.2915·b = 0.467548

4. cube

l = 0.367306³ = 0.049554
m = 0.405438³ = 0.066646
s = 0.467548³ = 0.102206

5. LMS → linear sRGB

R = 4.0767·l − 3.3077·m + 0.2310·s = 0.005182
G = −1.2684·l + 2.6098·m − 0.3413·s = 0.076188
B = −0.0042·l − 0.7034·m + 1.7076·s = 0.127441

6. linear → sRGB, × 255

R = 0.06275 × 255 = 16.00 → 16
G = 0.30589 × 255 = 78.00 → 78
B = 0.39216 × 255 = 100.00 → 100

7. RGB → HEX
```
#104E64
```

All formats

HEX: #104e64
RGB: rgb(16 78 100)
RGB (legacy): rgb(16, 78, 100)
HSL: hsl(195.71 72.41% 22.75%) → hsl(196 72% 23%)
HWB: hwb(196 6% 61%)
OKLCH: oklch(0.397 0.070 227.2) · oklch(39.7% 0.070 227.2)
OKLab: oklab(0.397 -0.047 -0.051)
Lab (D50): lab(30.28 -13.23 -18.68)
LCH (D50): lch(30.28 22.89 234.69)
Display P3: color(display-p3 0.1418 0.3012 0.3836)
Linear sRGB: color(srgb-linear 0.0052 0.0762 0.1274)

Gamut: sRGB and Display P3

#104E64 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.077 and Display P3 reaches 0.101; this color uses 91% of the sRGB chroma available.

CSS snippets

.element {
  color: #104e64;
  color: rgb(16 78 100);
  color: hsl(196 72% 23%);
  color: oklch(0.397 0.070 227.2);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.397 0.070 227.2);
}
/* arbitrary values */
class="text-[#104e64] bg-[oklch(0.397_0.070_227.2)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.1418 0.3012 0.3836); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #104e64 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

#255F75 · oklch(0.457 0.070 227.2) · ΔL +0.06
#003E53 · oklch(0.337 0.070 227.2) · 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?