HEX to OKLCH: #05DF72

Also known as: Tailwind green-400

#05DF72 → oklch(0.791 0.209 151.7)

Values are shown at full precision, so converting back gives exactly #05df72. 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: 5/255 = 0.01961 → 0.001518  (÷ 12.92)
G: 223/255 = 0.87451 → 0.737910  (((x + 0.055) / 1.055)^2.4)
B: 114/255 = 0.44706 → 0.168269  (((x + 0.055) / 1.055)^2.4)

2. linear sRGB → LMS

l = 0.4122·R + 0.5363·G + 0.0514·B = 0.405048
m = 0.2119·R + 0.6807·G + 0.1074·B = 0.520688
s = 0.0883·R + 0.2817·G + 0.6300·B = 0.314023

3. cube root

l′ = ∛0.405048 = 0.739893
m′ = ∛0.520688 = 0.804500
s′ = ∛0.314023 = 0.679705

4. LMS′ → Oklab

L = 0.2105·l′ + 0.7936·m′ − 0.0041·s′ = 0.79141
a = 1.9780·l′ − 2.4286·m′ + 0.4506·s′ = -0.18402
b = 0.0259·l′ + 0.7828·m′ − 0.8087·s′ = 0.09924

5. Oklab → OKLCH

C = √(a² + b²) = 0.20908
H = atan2(b, a) = 151.662°
L = 0.79141

6. OKLCH

oklch(0.79141 0.20908 151.662)
rounded: oklch(0.791 0.209 151.7)

All formats

HEX: #05df72
RGB: rgb(5 223 114)
RGB (legacy): rgb(5, 223, 114)
HSL: hsl(150.00 95.61% 44.71%) → hsl(150 96% 45%)
HWB: hwb(150 2% 13%)
OKLCH: oklch(0.791 0.209 151.7) · oklch(79.1% 0.209 151.7)
OKLab: oklab(0.791 -0.184 0.099)
Lab (D50): lab(78.43 -64.91 39.84)
LCH (D50): lch(78.43 76.17 148.46)
Display P3: color(display-p3 0.3991 0.8616 0.4919)
Linear sRGB: color(srgb-linear 0.0015 0.7379 0.1683)

Gamut: sRGB and Display P3

#05DF72 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.210 and Display P3 reaches 0.292; this color uses 100% of the sRGB chroma available.

CSS snippets

.element {
  color: #05df72;
  color: rgb(5 223 114);
  color: hsl(150 96% 45%);
  color: oklch(0.791 0.209 151.7);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.791 0.209 151.7);
}
/* arbitrary values */
class="text-[#05df72] bg-[oklch(0.791_0.209_151.7)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.3991 0.8616 0.4919); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #05df72 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

#3AF385 · oklch(0.851 0.209 151.7) · ΔL +0.06
#00CB5F · oklch(0.731 0.209 151.7) · ΔL −0.06

Open in the studio

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Guides: What is OKLCH?