HEX to OKLCH: #44403B

Result

Values are shown at full precision, so converting back gives exactly #44403b. 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. sRGB → linear

   R: 68/255 = 0.26667 → 0.057805  (((x + 0.055) / 1.055)^2.4)
   G: 64/255 = 0.25098 → 0.051269  (((x + 0.055) / 1.055)^2.4)
   B: 59/255 = 0.23137 → 0.043735  (((x + 0.055) / 1.055)^2.4)

2. 2. linear sRGB → LMS

   l = 0.4122·R + 0.5363·G + 0.0514·B = 0.053576
   m = 0.2119·R + 0.6807·G + 0.1074·B = 0.051845
   s = 0.0883·R + 0.2817·G + 0.6300·B = 0.047100

3. 3. cube root

   l′ = ∛0.053576 = 0.376985
   m′ = ∛0.051845 = 0.372881
   s′ = ∛0.047100 = 0.361139

4. 4. LMS′ → Oklab

   L = 0.2105·l′ + 0.7936·m′ − 0.0041·s′ = 0.37379
   a = 1.9780·l′ − 2.4286·m′ + 0.4506·s′ = 0.00283
   b = 0.0259·l′ + 0.7828·m′ − 0.8087·s′ = 0.00960

5. 5. Oklab → OKLCH

   C = √(a² + b²) = 0.01001
   H = atan2(b, a) = 73.594°
   L = 0.37379

6. 6. OKLCH

   oklch(0.37379 0.01001 73.594)
   rounded: oklch(0.374 0.010 73.6)

All formats

HEX

#44403b

RGB

rgb(68 64 59)

RGB (legacy)

rgb(68, 64, 59)

HSL

hsl(33.33 7.09% 24.90%) → hsl(33 7% 25%)

HWB

hwb(33 23% 73%)

OKLCH

oklch(0.374 0.010 73.6) · oklch(37.4% 0.010 73.6)

OKLab

oklab(0.374 0.003 0.010)

Lab (D50)

lab(27.37 1.00 3.71)

LCH (D50)

lch(27.37 3.85 74.98)

Display P3

color(display-p3 0.2640 0.2515 0.2335)

Linear sRGB

color(srgb-linear 0.0578 0.0513 0.0437)

Gamut: sRGB and Display P3

#44403B is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.079 and Display P3 reaches 0.091; this color uses 13% of the sRGB chroma available.

CSS snippets

.element {
  color: #44403b;
  color: rgb(68 64 59);
  color: hsl(33 7% 25%);
  color: oklch(0.374 0.010 73.6);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.374 0.010 73.6);
}
/* arbitrary values */
class="text-[#44403b] bg-[oklch(0.374_0.010_73.6)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.2640 0.2515 0.2335); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #44403b calc(l - 0.1) c h); }

Nearby colors

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

• v3 stone-700#44403C
• neutral-700#404040
• taupe-700#473C39
• zinc-700#3F3F46
• mist-700#394447
• olive-700#474739
• mauve-700#463947
• v3 gray-700#374151

Lighter and darker, same hue and chroma

• #54504B · oklch(0.434 0.010 73.6) · ΔL +0.06
• #34312C · oklch(0.314 0.010 73.6) · ΔL −0.06

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