HEX to OKLCH: #00C950

Also known as: Tailwind green-500

#00C950 → oklch(0.729 0.212 147.8)

Values are shown at full precision, so converting back gives exactly #00c950. 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: 201/255 = 0.78824 → 0.584078  (((x + 0.055) / 1.055)^2.4)
B: 80/255 = 0.31373 → 0.080220  (((x + 0.055) / 1.055)^2.4)

2. linear sRGB → LMS

l = 0.4122·R + 0.5363·G + 0.0514·B = 0.317387
m = 0.2119·R + 0.6807·G + 0.1074·B = 0.406197
s = 0.0883·R + 0.2817·G + 0.6300·B = 0.215083

3. cube root

l′ = ∛0.317387 = 0.682124
m′ = ∛0.406197 = 0.740592
s′ = ∛0.215083 = 0.599149

4. LMS′ → Oklab

L = 0.2105·l′ + 0.7936·m′ − 0.0041·s′ = 0.72886
a = 1.9780·l′ − 2.4286·m′ + 0.4506·s′ = -0.17938
b = 0.0259·l′ + 0.7828·m′ − 0.8087·s′ = 0.11287

5. Oklab → OKLCH

C = √(a² + b²) = 0.21194
H = atan2(b, a) = 147.822°
L = 0.72886

6. OKLCH

oklch(0.72886 0.21194 147.822)
rounded: oklch(0.729 0.212 147.8)

All formats

HEX: #00c950
RGB: rgb(0 201 80)
RGB (legacy): rgb(0, 201, 80)
HSL: hsl(143.88 100.00% 39.41%) → hsl(144 100% 39%)
HWB: hwb(144 0% 21%)
OKLCH: oklch(0.729 0.212 147.8) · oklch(72.9% 0.212 147.8)
OKLab: oklab(0.729 -0.179 0.113)
Lab (D50): lab(71.12 -62.56 46.81)
LCH (D50): lch(71.12 78.13 143.19)
Display P3: color(display-p3 0.3553 0.7765 0.3739)
Linear sRGB: color(srgb-linear 0.0000 0.5841 0.0802)

Gamut: sRGB and Display P3

#00C950 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.212 and Display P3 reaches 0.297; this color uses 100% of the sRGB chroma available.

CSS snippets

.element {
  color: #00c950;
  color: rgb(0 201 80);
  color: hsl(144 100% 39%);
  color: oklch(0.729 0.212 147.8);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.729 0.212 147.8);
}
/* arbitrary values */
class="text-[#00c950] bg-[oklch(0.729_0.212_147.8)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.3553 0.7765 0.3739); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #00c950 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

#35DD64 · oklch(0.789 0.212 147.8) · ΔL +0.06
#00B53C · oklch(0.669 0.212 147.8) · ΔL −0.06

Open in the studio

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Guides: What is OKLCH?