HEX to HSL: #52525B

Also known as: Tailwind v3 zinc-600

#52525B → hsl(240 5% 34%)

Values are shown at full precision, so converting back gives exactly #52525b. 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 = 0.3216
G = 0.3216
B = 0.3569
```

2. max, min, Δ

max = 0.3569
min = 0.3216
Δ = max − min = 0.0353

3. L
```
L = (max + min) / 2 = 0.3392 = 33.92%
```

4. S

S = Δ / (1 − |2L − 1|) = 0.0520 = 5.20%

5. H

max is B → H = 60° × ((R − G) / Δ + 4) = 60° × ((0.3216 − 0.3216) / 0.0353 + 4) = 240.00°

6. HSL
```
hsl(240.00 5.20% 33.92%)
```

All formats

HEX: #52525b
RGB: rgb(82 82 91)
RGB (legacy): rgb(82, 82, 91)
HSL: hsl(240.00 5.20% 33.92%) → hsl(240 5% 34%)
HWB: hwb(240 32% 64%)
OKLCH: oklch(0.442 0.015 285.8) · oklch(44.2% 0.015 285.8)
OKLab: oklab(0.442 0.004 -0.014)
Lab (D50): lab(35.12 1.51 -5.27)
LCH (D50): lch(35.12 5.48 286.03)
Display P3: color(display-p3 0.3216 0.3216 0.3539)
Linear sRGB: color(srgb-linear 0.0844 0.0844 0.1046)

Gamut: sRGB and Display P3

#52525B is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.257 and Display P3 reaches 0.262; this color uses 6% of the sRGB chroma available.

CSS snippets

.element {
  color: #52525b;
  color: rgb(82 82 91);
  color: hsl(240 5% 34%);
  color: oklch(0.442 0.015 285.8);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.442 0.015 285.8);
}
/* arbitrary values */
class="text-[#52525b] bg-[oklch(0.442_0.015_285.8)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.3216 0.3216 0.3539); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #52525b 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

#63636C · oklch(0.502 0.015 285.8) · ΔL +0.06
#42424B · oklch(0.382 0.015 285.8) · 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?