OKLCH to HEX: #024A70

Also known as: Tailwind sky-900

oklch(0.39070 0.08936 240.611) → #024A70

Values are shown at full precision, so converting back gives exactly #024a70. 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(0.39070 0.08936 240.611)
```

2. OKLCH → Oklab

a = C·cos H = -0.04385
b = C·sin H = -0.07786

3. Oklab → LMS′

l′ = L + 0.3963·a + 0.2158·b = 0.356517
m′ = L − 0.1056·a − 0.0639·b = 0.400301
s′ = L − 0.0895·a − 1.2915·b = 0.495179

4. cube

l = 0.356517³ = 0.045315
m = 0.400301³ = 0.064144
s = 0.495179³ = 0.121419

5. LMS → linear sRGB

R = 4.0767·l − 3.3077·m + 0.2310·s = 0.000610
G = −1.2684·l + 2.6098·m − 0.3413·s = 0.068480
B = −0.0042·l − 0.7034·m + 1.7076·s = 0.162027

6. linear → sRGB, × 255

R = 0.00788 × 255 = 2.01 → 2
G = 0.29020 × 255 = 74.00 → 74
B = 0.43921 × 255 = 112.00 → 112

7. RGB → HEX
```
#024A70
```

All formats

HEX: #024a70
RGB: rgb(2 74 112)
RGB (legacy): rgb(2, 74, 112)
HSL: hsl(200.73 96.49% 22.35%) → hsl(201 96% 22%)
HWB: hwb(201 1% 56%)
OKLCH: oklch(0.391 0.089 240.6) · oklch(39.1% 0.089 240.6)
OKLab: oklab(0.391 -0.044 -0.078)
Lab (D50): lab(29.17 -8.48 -27.98)
LCH (D50): lch(29.17 29.24 253.15)
Display P3: color(display-p3 0.1158 0.2854 0.4269)
Linear sRGB: color(srgb-linear 0.0006 0.0685 0.1620)

Gamut: sRGB and Display P3

#024A70 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.090 and Display P3 reaches 0.118; this color uses 99% of the sRGB chroma available.

CSS snippets

.element {
  color: #024a70;
  color: rgb(2 74 112);
  color: hsl(201 96% 22%);
  color: oklch(0.391 0.089 240.6);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.391 0.089 240.6);
}
/* arbitrary values */
class="text-[#024a70] bg-[oklch(0.391_0.089_240.6)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.1158 0.2854 0.4269); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #024a70 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

#1C5B82 · oklch(0.451 0.089 240.6) · ΔL +0.06
#003A5E · oklch(0.331 0.089 240.6) · 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?