HEX to OKLCH: #008236

Also known as: Tailwind green-700

#008236 → oklch(0.530 0.149 149.0)

Values are shown at full precision, so converting back gives exactly #008236. 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. sRGB → linear

R: 0/255 = 0.00000 → 0.000000  (÷ 12.92)
G: 130/255 = 0.50980 → 0.223228  (((x + 0.055) / 1.055)^2.4)
B: 54/255 = 0.21176 → 0.036889  (((x + 0.055) / 1.055)^2.4)

2. linear sRGB → LMS

l = 0.4122·R + 0.5363·G + 0.0514·B = 0.121622
m = 0.2119·R + 0.6807·G + 0.1074·B = 0.155913
s = 0.0883·R + 0.2817·G + 0.6300·B = 0.086127

3. cube root

l′ = ∛0.121622 = 0.495455
m′ = ∛0.155913 = 0.538221
s′ = ∛0.086127 = 0.441618

4. LMS′ → Oklab

L = 0.2105·l′ + 0.7936·m′ − 0.0041·s′ = 0.52961
a = 1.9780·l′ − 2.4286·m′ + 0.4506·s′ = -0.12812
b = 0.0259·l′ + 0.7828·m′ − 0.8087·s′ = 0.07701

5. Oklab → OKLCH

C = √(a² + b²) = 0.14948
H = atan2(b, a) = 148.990°
L = 0.52961

6. OKLCH

oklch(0.52961 0.14948 148.990)
rounded: oklch(0.530 0.149 149.0)

All formats

HEX: #008236
RGB: rgb(0 130 54)
RGB (legacy): rgb(0, 130, 54)
HSL: hsl(144.92 100.00% 25.49%) → hsl(145 100% 25%)
HWB: hwb(145 0% 49%)
OKLCH: oklch(0.530 0.149 149.0) · oklch(53.0% 0.149 149.0)
OKLab: oklab(0.530 -0.128 0.077)
Lab (D50): lab(47.27 -44.87 31.58)
LCH (D50): lch(47.27 54.87 144.86)
Display P3: color(display-p3 0.2199 0.5019 0.2472)
Linear sRGB: color(srgb-linear 0.0000 0.2232 0.0369)

Gamut: sRGB and Display P3

#008236 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.149 and Display P3 reaches 0.209; this color uses 100% of the sRGB chroma available.

CSS snippets

.element {
  color: #008236;
  color: rgb(0 130 54);
  color: hsl(145 100% 25%);
  color: oklch(0.530 0.149 149.0);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.530 0.149 149.0);
}
/* arbitrary values */
class="text-[#008236] bg-[oklch(0.530_0.149_149.0)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.2199 0.5019 0.2472); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #008236 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

#269448 · oklch(0.590 0.149 149.0) · ΔL +0.06
#007024 · oklch(0.470 0.149 149.0) · ΔL −0.06

Open in the studio

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Guides: What is OKLCH?