OKLCH to HEX: #0EA5E9

Also known as: Tailwind v3 sky-500

oklch(0.68469 0.14787 237.323) → #0EA5E9

Values are shown at full precision, so converting back gives exactly #0ea5e9. 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(0.68469 0.14787 237.323)
```

2. OKLCH → Oklab

a = C·cos H = -0.07984
b = C·sin H = -0.12447

3. Oklab → LMS′

l′ = L + 0.3963·a + 0.2158·b = 0.626188
m′ = L − 0.1056·a − 0.0639·b = 0.701065
s′ = L − 0.0895·a − 1.2915·b = 0.852580

4. cube

l = 0.626188³ = 0.245535
m = 0.701065³ = 0.344568
s = 0.852580³ = 0.619735

5. LMS → linear sRGB

R = 4.0767·l − 3.3077·m + 0.2310·s = 0.004392
G = −1.2684·l + 2.6098·m − 0.3413·s = 0.376266
B = −0.0042·l − 0.7034·m + 1.7076·s = 0.814863

6. linear → sRGB, × 255

R = 0.05491 × 255 = 14.00 → 14
G = 0.64706 × 255 = 165.00 → 165
B = 0.91373 × 255 = 233.00 → 233

7. RGB → HEX
```
#0EA5E9
```

All formats

HEX: #0ea5e9
RGB: rgb(14 165 233)
RGB (legacy): rgb(14, 165, 233)
HSL: hsl(198.63 88.66% 48.43%) → hsl(199 89% 48%)
HWB: hwb(199 5% 9%)
OKLCH: oklch(0.685 0.148 237.3) · oklch(68.5% 0.148 237.3)
OKLab: oklab(0.685 -0.080 -0.124)
Lab (D50): lab(63.35 -17.61 -44.86)
LCH (D50): lch(63.35 48.19 248.57)
Display P3: color(display-p3 0.2942 0.6374 0.8908)
Linear sRGB: color(srgb-linear 0.0044 0.3763 0.8148)

Gamut: sRGB and Display P3

#0EA5E9 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.150 and Display P3 reaches 0.197; this color uses 98% of the sRGB chroma available.

CSS snippets

.element {
  color: #0ea5e9;
  color: rgb(14 165 233);
  color: hsl(199 89% 48%);
  color: oklch(0.685 0.148 237.3);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.685 0.148 237.3);
}
/* arbitrary values */
class="text-[#0ea5e9] bg-[oklch(0.685_0.148_237.3)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.2942 0.6374 0.8908); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #0ea5e9 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

#34B8FD · oklch(0.745 0.148 237.3) · ΔL +0.06
#0092D5 · oklch(0.625 0.148 237.3) · 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?