HEX to HSL: #A3E635

Also known as: Tailwind v3 lime-400

#A3E635 → hsl(83 78% 55%)

Values are shown at full precision, so converting back gives exactly #a3e635. 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. RGB ÷ 255
```
R = 0.6392
G = 0.9020
B = 0.2078
```

2. max, min, Δ

max = 0.9020
min = 0.2078
Δ = max − min = 0.6941

3. L
```
L = (max + min) / 2 = 0.5549 = 55.49%
```

4. S

S = Δ / (1 − |2L − 1|) = 0.7797 = 77.97%

5. H

max is G → H = 60° × ((B − R) / Δ + 2) = 60° × ((0.2078 − 0.6392) / 0.6941 + 2) = 82.71°

6. HSL
```
hsl(82.71 77.97% 55.49%)
```

All formats

HEX: #a3e635
RGB: rgb(163 230 53)
RGB (legacy): rgb(163, 230, 53)
HSL: hsl(82.71 77.97% 55.49%) → hsl(83 78% 55%)
HWB: hwb(83 21% 10%)
OKLCH: oklch(0.849 0.207 128.8) · oklch(84.9% 0.207 128.8)
OKLab: oklab(0.849 -0.130 0.161)
Lab (D50): lab(84.53 -39.95 71.99)
LCH (D50): lch(84.53 82.33 119.03)
Display P3: color(display-p3 0.6956 0.8948 0.3423)
Linear sRGB: color(srgb-linear 0.3663 0.7913 0.0356)

Gamut: sRGB and Display P3

#A3E635 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.225 and Display P3 reaches 0.263; this color uses 92% of the sRGB chroma available.

CSS snippets

.element {
  color: #a3e635;
  color: rgb(163 230 53);
  color: hsl(83 78% 55%);
  color: oklch(0.849 0.207 128.8);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.849 0.207 128.8);
}
/* arbitrary values */
class="text-[#a3e635] bg-[oklch(0.849_0.207_128.8)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.6956 0.8948 0.3423); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #a3e635 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

#B6FA50 · oklch(0.909 0.207 128.8) · ΔL +0.06
#90D209 · oklch(0.789 0.207 128.8) · ΔL −0.06

Open in the studio

Open in the OKLCH picker Check contrast on white

Other converters for this color

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Guides: What is OKLCH?