OKLCH to HEX: #052F4A

Also known as: Tailwind sky-950

oklch(0.29319 0.06580 242.909) → #052F4A

Values are shown at full precision, so converting back gives exactly #052f4a. 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(0.29319 0.06580 242.909)
```

2. OKLCH → Oklab

a = C·cos H = -0.02997
b = C·sin H = -0.05858

3. Oklab → LMS′

l′ = L + 0.3963·a + 0.2158·b = 0.268672
m′ = L − 0.1056·a − 0.0639·b = 0.300094
s′ = L − 0.0895·a − 1.2915·b = 0.371528

4. cube

l = 0.268672³ = 0.019394
m = 0.300094³ = 0.027025
s = 0.371528³ = 0.051283

5. LMS → linear sRGB

R = 4.0767·l − 3.3077·m + 0.2310·s = 0.001517
G = −1.2684·l + 2.6098·m − 0.3413·s = 0.028426
B = −0.0042·l − 0.7034·m + 1.7076·s = 0.068480

6. linear → sRGB, × 255

R = 0.01960 × 255 = 5.00 → 5
G = 0.18431 × 255 = 47.00 → 47
B = 0.29020 × 255 = 74.00 → 74

7. RGB → HEX
```
#052F4A
```

All formats

HEX: #052f4a
RGB: rgb(5 47 74)
RGB (legacy): rgb(5, 47, 74)
HSL: hsl(203.48 87.34% 15.49%) → hsl(203 87% 15%)
HWB: hwb(203 2% 71%)
OKLCH: oklch(0.293 0.066 242.9) · oklch(29.3% 0.066 242.9)
OKLab: oklab(0.293 -0.030 -0.059)
Lab (D50): lab(17.86 -5.41 -21.05)
LCH (D50): lch(17.86 21.74 255.57)
Display P3: color(display-p3 0.0727 0.1812 0.2816)
Linear sRGB: color(srgb-linear 0.0015 0.0284 0.0685)

Gamut: sRGB and Display P3

#052F4A is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.071 and Display P3 reaches 0.092; this color uses 93% of the sRGB chroma available.

CSS snippets

.element {
  color: #052f4a;
  color: rgb(5 47 74);
  color: hsl(203 87% 15%);
  color: oklch(0.293 0.066 242.9);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.293 0.066 242.9);
}
/* arbitrary values */
class="text-[#052f4a] bg-[oklch(0.293_0.066_242.9)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.0727 0.1812 0.2816); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #052f4a 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

#183F5B · oklch(0.353 0.066 242.9) · ΔL +0.06
#00203A · oklch(0.233 0.066 242.9) · 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?