OKLCH to HEX: #4338CA

Result

Values are shown at full precision, so converting back gives exactly #4338ca. 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(0.45678 0.21458 277.023)

2. 2. OKLCH → Oklab

   a = C·cos H = 0.02624
   b = C·sin H = -0.21297

3. 3. Oklab → LMS′

   l′ = L + 0.3963·a + 0.2158·b = 0.421219
   m′ = L − 0.1056·a − 0.0639·b = 0.467609
   s′ = L − 0.0895·a − 1.2915·b = 0.729480

4. 4. cube

   l = 0.421219³ = 0.074735
   m = 0.467609³ = 0.102247
   s = 0.729480³ = 0.388186

5. 5. LMS → linear sRGB

   R = 4.0767·l − 3.3077·m + 0.2310·s = 0.056131
   G = −1.2684·l + 2.6098·m − 0.3413·s = 0.039548
   B = −0.0042·l − 0.7034·m + 1.7076·s = 0.590637

6. 6. linear → sRGB, × 255

   R = 0.26275 × 255 = 67.00 → 67
   G = 0.21961 × 255 = 56.00 → 56
   B = 0.79217 × 255 = 202.00 → 202

7. 7. RGB → HEX

   #4338CA

All formats

HEX

#4338ca

RGB

rgb(67 56 202)

RGB (legacy)

rgb(67, 56, 202)

HSL

hsl(244.52 57.94% 50.59%) → hsl(245 58% 51%)

HWB

hwb(245 22% 21%)

OKLCH

oklch(0.457 0.215 277.0) · oklch(45.7% 0.215 277.0)

OKLab

oklab(0.457 0.026 -0.213)

Lab (D50)

lab(33.27 40.13 -75.54)

LCH (D50)

lch(33.27 85.54 297.98)

Display P3

color(display-p3 0.2557 0.2212 0.7621)

Linear sRGB

color(srgb-linear 0.0561 0.0395 0.5906)

Gamut: sRGB and Display P3

#4338CA is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.283 and Display P3 reaches 0.286; this color uses 76% of the sRGB chroma available.

CSS snippets

.element {
  color: #4338ca;
  color: rgb(67 56 202);
  color: hsl(245 58% 51%);
  color: oklch(0.457 0.215 277.0);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.457 0.215 277.0);
}
/* arbitrary values */
class="text-[#4338ca] bg-[oklch(0.457_0.215_277.0)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.2557 0.2212 0.7621); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #4338ca calc(l - 0.1) c h); }

Nearby colors

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

• indigo-700#432DD7
• blue-800#193CB8
• v3 indigo-600#4F46E5
• v3 blue-700#1D4ED8
• v3 blue-800#1E40AF
• indigo-800#372AAC
• v3 violet-800#5B21B6
• blue-700#1447E6

Lighter and darker, same hue and chroma

• #514DDF · oklch(0.517 0.215 277.0) · ΔL +0.06
• #3620B5 · oklch(0.397 0.215 277.0) · ΔL −0.06

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