HEX to HSL: #FF6900

Also known as: Tailwind orange-500

#FF6900 → hsl(25 100% 50%)

Values are shown at full precision, so converting back gives exactly #ff6900. 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 = 1.0000
G = 0.4118
B = 0.0000
```

2. max, min, Δ

max = 1.0000
min = 0.0000
Δ = max − min = 1.0000

3. L
```
L = (max + min) / 2 = 0.5000 = 50.00%
```

4. S

S = Δ / (1 − |2L − 1|) = 1.0000 = 100.00%

5. H

max is R → H = 60° × (((G − B) / Δ) mod 6) = 60° × (((0.4118 − 0.0000) / 1.0000) mod 6) = 24.71°

6. HSL
```
hsl(24.71 100.00% 50.00%)
```

All formats

HEX: #ff6900
RGB: rgb(255 105 0)
RGB (legacy): rgb(255, 105, 0)
HSL: hsl(24.71 100.00% 50.00%) → hsl(25 100% 50%)
HWB: hwb(25 0% 0%)
OKLCH: oklch(0.700 0.202 44.4) · oklch(70.0% 0.202 44.4)
OKLab: oklab(0.700 0.144 0.141)
Lab (D50): lab(63.65 55.79 72.86)
LCH (D50): lch(63.65 91.77 52.56)
Display P3: color(display-p3 0.9297 0.4489 0.1804)
Linear sRGB: color(srgb-linear 1.0000 0.1413 0.0000)

Gamut: sRGB and Display P3

#FF6900 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.202 and Display P3 reaches 0.229; this color uses 100% of the sRGB chroma available.

CSS snippets

.element {
  color: #ff6900;
  color: rgb(255 105 0);
  color: hsl(25 100% 50%);
  color: oklch(0.700 0.202 44.4);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.700 0.202 44.4);
}
/* arbitrary values */
class="text-[#ff6900] bg-[oklch(0.700_0.202_44.4)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.9297 0.4489 0.1804); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #ff6900 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

#FF7D2B · oklch(0.760 0.202 44.4) · ΔL +0.06
#E95500 · oklch(0.640 0.202 44.4) · 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?