OKLCH to HEX: #0C4A6E

Result

Values are shown at full precision, so converting back gives exactly #0c4a6e. 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. 1. input

   oklch(0.39123 0.08453 240.876)

2. 2. OKLCH → Oklab

   a = C·cos H = -0.04114
   b = C·sin H = -0.07384

3. 3. Oklab → LMS′

   l′ = L + 0.3963·a + 0.2158·b = 0.358989
   m′ = L − 0.1056·a − 0.0639·b = 0.400288
   s′ = L − 0.0895·a − 1.2915·b = 0.490278

4. 4. cube

   l = 0.358989³ = 0.046264
   m = 0.400288³ = 0.064138
   s = 0.490278³ = 0.117850

5. 5. LMS → linear sRGB

   R = 4.0767·l − 3.3077·m + 0.2310·s = 0.003675
   G = −1.2684·l + 2.6098·m − 0.3413·s = 0.068478
   B = −0.0042·l − 0.7034·m + 1.7076·s = 0.155931

6. 6. linear → sRGB, × 255

   R = 0.04704 × 255 = 11.99 → 12
   G = 0.29020 × 255 = 74.00 → 74
   B = 0.43138 × 255 = 110.00 → 110

7. 7. RGB → HEX

   #0C4A6E

All formats

HEX

#0c4a6e

RGB

rgb(12 74 110)

RGB (legacy)

rgb(12, 74, 110)

HSL

hsl(202.04 80.33% 23.92%) → hsl(202 80% 24%)

HWB

hwb(202 5% 57%)

OKLCH

oklch(0.391 0.085 240.9) · oklch(39.1% 0.085 240.9)

OKLab

oklab(0.391 -0.041 -0.074)

Lab (D50)

lab(29.25 -8.24 -26.58)

LCH (D50)

lch(29.25 27.83 252.77)

Display P3

color(display-p3 0.1293 0.2856 0.4196)

Linear sRGB

color(srgb-linear 0.0037 0.0685 0.1559)

Gamut: sRGB and Display P3

#0C4A6E is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.091 and Display P3 reaches 0.119; this color uses 93% of the sRGB chroma available.

CSS snippets

.element {
  color: #0c4a6e;
  color: rgb(12 74 110);
  color: hsl(202 80% 24%);
  color: oklch(0.391 0.085 240.9);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.391 0.085 240.9);
}
/* arbitrary values */
class="text-[#0c4a6e] bg-[oklch(0.391_0.085_240.9)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.1293 0.2856 0.4196); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #0c4a6e calc(l - 0.1) c h); }

Nearby colors

Closest colors in the Tailwind and CSS named palettes (OKLab distance).

• sky-900#024A70
• cyan-900#104E64
• v3 cyan-900#164E63
• slate-700#314158
• v3 slate-700#334155
• v3 sky-800#075985
• gray-700#364153
• sky-800#00598A

Lighter and darker, same hue and chroma

• #225B80 · oklch(0.451 0.085 240.9) · ΔL +0.06
• #003A5C · oklch(0.331 0.085 240.9) · ΔL −0.06

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