HEX to OKLCH: #3C6300

Also known as: Tailwind lime-800

#3C6300 → oklch(0.453 0.124 131.2)

Values are shown at full precision, so converting back gives exactly #3c6300. 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: 60/255 = 0.23529 → 0.045186  (((x + 0.055) / 1.055)^2.4)
G: 99/255 = 0.38824 → 0.124772  (((x + 0.055) / 1.055)^2.4)
B: 0/255 = 0.00000 → 0.000000  (÷ 12.92)

2. linear sRGB → LMS

l = 0.4122·R + 0.5363·G + 0.0514·B = 0.085546
m = 0.2119·R + 0.6807·G + 0.1074·B = 0.094507
s = 0.0883·R + 0.2817·G + 0.6300·B = 0.039141

3. cube root

l′ = ∛0.085546 = 0.440622
m′ = ∛0.094507 = 0.455500
s′ = ∛0.039141 = 0.339528

4. LMS′ → Oklab

L = 0.2105·l′ + 0.7936·m′ − 0.0041·s′ = 0.45284
a = 1.9780·l′ − 2.4286·m′ + 0.4506·s′ = -0.08168
b = 0.0259·l′ + 0.7828·m′ − 0.8087·s′ = 0.09340

5. Oklab → OKLCH

C = √(a² + b²) = 0.12408
H = atan2(b, a) = 131.172°
L = 0.45284

6. OKLCH

oklch(0.45284 0.12408 131.172)
rounded: oklch(0.453 0.124 131.2)

All formats

HEX: #3c6300
RGB: rgb(60 99 0)
RGB (legacy): rgb(60, 99, 0)
HSL: hsl(83.64 100.00% 19.41%) → hsl(84 100% 19%)
HWB: hwb(84 0% 61%)
OKLCH: oklch(0.453 0.124 131.2) · oklch(45.3% 0.124 131.2)
OKLab: oklab(0.453 -0.082 0.093)
Lab (D50): lab(37.75 -25.36 42.87)
LCH (D50): lch(37.75 49.81 120.61)
Display P3: color(display-p3 0.2701 0.3843 0.0986)
Linear sRGB: color(srgb-linear 0.0452 0.1248 0.0000)

Gamut: sRGB and Display P3

#3C6300 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.124 and Display P3 reaches 0.145; this color uses 100% of the sRGB chroma available.

CSS snippets

.element {
  color: #3c6300;
  color: rgb(60 99 0);
  color: hsl(84 100% 19%);
  color: oklch(0.453 0.124 131.2);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.453 0.124 131.2);
}
/* arbitrary values */
class="text-[#3c6300] bg-[oklch(0.453_0.124_131.2)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.2701 0.3843 0.0986); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #3c6300 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

#4C751D · oklch(0.513 0.124 131.2) · ΔL +0.06
#2C5200 · oklch(0.393 0.124 131.2) · ΔL −0.06

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