OKLCH to HEX: #87CEEB

Also known as: CSS skyblue

oklch(0.81482 0.08192 225.754) → #87CEEB

Values are shown at full precision, so converting back gives exactly #87ceeb. 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(0.81482 0.08192 225.754)
```

2. OKLCH → Oklab

a = C·cos H = -0.05716
b = C·sin H = -0.05868

3. Oklab → LMS′

l′ = L + 0.3963·a + 0.2158·b = 0.779502
m′ = L − 0.1056·a − 0.0639·b = 0.824601
s′ = L − 0.0895·a − 1.2915·b = 0.895724

4. cube

l = 0.779502³ = 0.473643
m = 0.824601³ = 0.560701
s = 0.895724³ = 0.718658

5. LMS → linear sRGB

R = 4.0767·l − 3.3077·m + 0.2310·s = 0.242271
G = −1.2684·l + 2.6098·m − 0.3413·s = 0.617216
B = −0.0042·l − 0.7034·m + 1.7076·s = 0.830795

6. linear → sRGB, × 255

R = 0.52940 × 255 = 135.00 → 135
G = 0.80785 × 255 = 206.00 → 206
B = 0.92158 × 255 = 235.00 → 235

7. RGB → HEX
```
#87CEEB
```

All formats

HEX: #87ceeb
RGB: rgb(135 206 235)
RGB (legacy): rgb(135, 206, 235)
HSL: hsl(197.40 71.43% 72.55%) → hsl(197 71% 73%)
HWB: hwb(197 53% 8%)
OKLCH: oklch(0.815 0.082 225.8) · oklch(81.5% 0.082 225.8)
OKLab: oklab(0.815 -0.057 -0.059)
Lab (D50): lab(78.85 -17.54 -21.79)
LCH (D50): lch(78.85 27.97 231.17)
Display P3: color(display-p3 0.5916 0.8006 0.9090)
Linear sRGB: color(srgb-linear 0.2423 0.6172 0.8308)

Gamut: sRGB and Display P3

#87CEEB is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.123 and Display P3 reaches 0.134; this color uses 66% of the sRGB chroma available.

CSS snippets

.element {
  color: #87ceeb;
  color: rgb(135 206 235);
  color: hsl(197 71% 73%);
  color: oklch(0.815 0.082 225.8);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.815 0.082 225.8);
}
/* arbitrary values */
class="text-[#87ceeb] bg-[oklch(0.815_0.082_225.8)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.5916 0.8006 0.9090); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #87ceeb 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

#9AE2FF · oklch(0.875 0.082 225.8) · ΔL +0.06
#74BBD7 · oklch(0.755 0.082 225.8) · ΔL −0.06

Open in the studio

Open in the OKLCH picker Check contrast on white

Other converters for this color

All converters →

Guides: What is OKLCH?