HEX to HSL: #450A0A

Also known as: Tailwind v3 red-950

#450A0A → hsl(0 75% 15%)

Values are shown at full precision, so converting back gives exactly #450a0a. 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 = 0.2706
G = 0.0392
B = 0.0392
```

2. max, min, Δ

max = 0.2706
min = 0.0392
Δ = max − min = 0.2314

3. L
```
L = (max + min) / 2 = 0.1549 = 15.49%
```

4. S

S = Δ / (1 − |2L − 1|) = 0.7468 = 74.68%

5. H

max is R → H = 60° × (((G − B) / Δ) mod 6) = 60° × (((0.0392 − 0.0392) / 0.2314) mod 6) = 0.00°

6. HSL
```
hsl(0.00 74.68% 15.49%)
```

All formats

HEX: #450a0a
RGB: rgb(69 10 10)
RGB (legacy): rgb(69, 10, 10)
HSL: hsl(0.00 74.68% 15.49%) → hsl(0 75% 15%)
HWB: hwb(0 4% 73%)
OKLCH: oklch(0.258 0.089 26.0) · oklch(25.8% 0.089 26.0)
OKLab: oklab(0.258 0.080 0.039)
Lab (D50): lab(12.99 27.93 16.18)
LCH (D50): lch(12.99 32.27 30.08)
Display P3: color(display-p3 0.2465 0.0601 0.0507)
Linear sRGB: color(srgb-linear 0.0595 0.0030 0.0030)

Gamut: sRGB and Display P3

#450A0A is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.105 and Display P3 reaches 0.118; this color uses 85% of the sRGB chroma available.

CSS snippets

.element {
  color: #450a0a;
  color: rgb(69 10 10);
  color: hsl(0 75% 15%);
  color: oklch(0.258 0.089 26.0);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.258 0.089 26.0);
}
/* arbitrary values */
class="text-[#450a0a] bg-[oklch(0.258_0.089_26.0)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.2465 0.0601 0.0507); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #450a0a 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

#571C19 · oklch(0.318 0.089 26.0) · ΔL +0.06
#330000 · oklch(0.198 0.089 26.0) · ΔL −0.06

Open in the studio

Open in the OKLCH picker Check contrast on white

Other converters for this color

All converters →

Guides: What is OKLCH?