HEX to OKLCH: #22C55E

Also known as: Tailwind v3 green-500

#22C55E → oklch(0.723 0.192 149.6)

Values are shown at full precision, so converting back gives exactly #22c55e. 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: 34/255 = 0.13333 → 0.015996  (((x + 0.055) / 1.055)^2.4)
G: 197/255 = 0.77255 → 0.558340  (((x + 0.055) / 1.055)^2.4)
B: 94/255 = 0.36863 → 0.111932  (((x + 0.055) / 1.055)^2.4)

2. linear sRGB → LMS

l = 0.4122·R + 0.5363·G + 0.0514·B = 0.311809
m = 0.2119·R + 0.6807·G + 0.1074·B = 0.395473
s = 0.0883·R + 0.2817·G + 0.6300·B = 0.229223

3. cube root

l′ = ∛0.311809 = 0.678104
m′ = ∛0.395473 = 0.734016
s′ = ∛0.229223 = 0.612001

4. LMS′ → Oklab

L = 0.2105·l′ + 0.7936·m′ − 0.0041·s′ = 0.72275
a = 1.9780·l′ − 2.4286·m′ + 0.4506·s′ = -0.16557
b = 0.0259·l′ + 0.7828·m′ − 0.8087·s′ = 0.09722

5. Oklab → OKLCH

C = √(a² + b²) = 0.19201
H = atan2(b, a) = 149.579°
L = 0.72275

6. OKLCH

oklch(0.72275 0.19201 149.579)
rounded: oklch(0.723 0.192 149.6)

All formats

HEX: #22c55e
RGB: rgb(34 197 94)
RGB (legacy): rgb(34, 197, 94)
HSL: hsl(142.09 70.56% 45.29%) → hsl(142 71% 45%)
HWB: hwb(142 13% 23%)
OKLCH: oklch(0.723 0.192 149.6) · oklch(72.3% 0.192 149.6)
OKLab: oklab(0.723 -0.166 0.097)
Lab (D50): lab(70.22 -57.98 39.44)
LCH (D50): lch(70.22 70.12 145.78)
Display P3: color(display-p3 0.3692 0.7613 0.4136)
Linear sRGB: color(srgb-linear 0.0160 0.5583 0.1119)

Gamut: sRGB and Display P3

#22C55E is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.201 and Display P3 reaches 0.281; this color uses 95% of the sRGB chroma available.

CSS snippets

.element {
  color: #22c55e;
  color: rgb(34 197 94);
  color: hsl(142 71% 45%);
  color: oklch(0.723 0.192 149.6);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.723 0.192 149.6);
}
/* arbitrary values */
class="text-[#22c55e] bg-[oklch(0.723_0.192_149.6)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.3692 0.7613 0.4136); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #22c55e 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

#41D971 · oklch(0.783 0.192 149.6) · ΔL +0.06
#00B14B · oklch(0.663 0.192 149.6) · ΔL −0.06

Open in the studio

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