HEX to HSL: #71717B

Also known as: Tailwind zinc-500

#71717B → hsl(240 4% 46%)

Values are shown at full precision, so converting back gives exactly #71717b. 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 = 0.4431
G = 0.4431
B = 0.4824
```

2. max, min, Δ

max = 0.4824
min = 0.4431
Δ = max − min = 0.0392

3. L
```
L = (max + min) / 2 = 0.4627 = 46.27%
```

4. S

S = Δ / (1 − |2L − 1|) = 0.0424 = 4.24%

5. H

max is B → H = 60° × ((R − G) / Δ + 4) = 60° × ((0.4431 − 0.4431) / 0.0392 + 4) = 240.00°

6. HSL
```
hsl(240.00 4.24% 46.27%)
```

All formats

HEX: #71717b
RGB: rgb(113 113 123)
RGB (legacy): rgb(113, 113, 123)
HSL: hsl(240.00 4.24% 46.27%) → hsl(240 4% 46%)
HWB: hwb(240 44% 52%)
OKLCH: oklch(0.552 0.015 285.9) · oklch(55.2% 0.015 285.9)
OKLab: oklab(0.552 0.004 -0.015)
Lab (D50): lab(47.90 1.58 -5.54)
LCH (D50): lch(47.90 5.76 285.90)
Display P3: color(display-p3 0.4431 0.4431 0.4790)
Linear sRGB: color(srgb-linear 0.1651 0.1651 0.1981)

Gamut: sRGB and Display P3

#71717B is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.261 and Display P3 reaches 0.280; this color uses 6% of the sRGB chroma available.

CSS snippets

.element {
  color: #71717b;
  color: rgb(113 113 123);
  color: hsl(240 4% 46%);
  color: oklch(0.552 0.015 285.9);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.552 0.015 285.9);
}
/* arbitrary values */
class="text-[#71717b] bg-[oklch(0.552_0.015_285.9)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.4431 0.4431 0.4790); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #71717b 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

#83838D · oklch(0.612 0.015 285.9) · ΔL +0.06
#60606A · oklch(0.492 0.015 285.9) · 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?