HEX to HSL: #3B0764

Also known as: Tailwind v3 purple-950

#3B0764 → hsl(274 87% 21%)

Values are shown at full precision, so converting back gives exactly #3b0764. 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 = 0.2314
G = 0.0275
B = 0.3922
```

2. max, min, Δ

max = 0.3922
min = 0.0275
Δ = max − min = 0.3647

3. L
```
L = (max + min) / 2 = 0.2098 = 20.98%
```

4. S

S = Δ / (1 − |2L − 1|) = 0.8692 = 86.92%

5. H

max is B → H = 60° × ((R − G) / Δ + 4) = 60° × ((0.2314 − 0.0275) / 0.3647 + 4) = 273.55°

6. HSL
```
hsl(273.55 86.92% 20.98%)
```

All formats

HEX: #3b0764
RGB: rgb(59 7 100)
RGB (legacy): rgb(59, 7, 100)
HSL: hsl(273.55 86.92% 20.98%) → hsl(274 87% 21%)
HWB: hwb(274 3% 61%)
OKLCH: oklch(0.291 0.143 302.7) · oklch(29.1% 0.143 302.7)
OKLab: oklab(0.291 0.077 -0.121)
Lab (D50): lab(14.94 36.96 -42.85)
LCH (D50): lch(14.94 56.59 310.78)
Display P3: color(display-p3 0.2101 0.0451 0.3764)
Linear sRGB: color(srgb-linear 0.0437 0.0021 0.1274)

Gamut: sRGB and Display P3

#3B0764 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.153 and Display P3 reaches 0.160; this color uses 94% of the sRGB chroma available.

CSS snippets

.element {
  color: #3b0764;
  color: rgb(59 7 100);
  color: hsl(274 87% 21%);
  color: oklch(0.291 0.143 302.7);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.291 0.143 302.7);
}
/* arbitrary values */
class="text-[#3b0764] bg-[oklch(0.291_0.143_302.7)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.2101 0.0451 0.3764); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #3b0764 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

#4B1D76 · oklch(0.351 0.143 302.7) · ΔL +0.06
#2C0052 · oklch(0.231 0.143 302.7) · 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?