HEX to HSL: #F0F8FF

Also known as: CSS aliceblue

#F0F8FF → hsl(208 100% 97%)

Values are shown at full precision, so converting back gives exactly #f0f8ff. 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 = 0.9412
G = 0.9725
B = 1.0000
```

2. max, min, Δ

max = 1.0000
min = 0.9412
Δ = max − min = 0.0588

3. L
```
L = (max + min) / 2 = 0.9706 = 97.06%
```

4. S

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

5. H

max is B → H = 60° × ((R − G) / Δ + 4) = 60° × ((0.9412 − 0.9725) / 0.0588 + 4) = 208.00°

6. HSL
```
hsl(208.00 100.00% 97.06%)
```

All formats

HEX: #f0f8ff
RGB: rgb(240 248 255)
RGB (legacy): rgb(240, 248, 255)
HSL: hsl(208.00 100.00% 97.06%) → hsl(208 100% 97%)
HWB: hwb(208 94% 0%)
OKLCH: oklch(0.975 0.013 244.3) · oklch(97.5% 0.013 244.3)
OKLab: oklab(0.975 -0.006 -0.011)
Lab (D50): lab(97.12 -1.77 -4.33)
LCH (D50): lch(97.12 4.68 247.74)
Display P3: color(display-p3 0.9468 0.9715 0.9971)
Linear sRGB: color(srgb-linear 0.8714 0.9387 1.0000)

Gamut: sRGB and Display P3

#F0F8FF is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.013 and Display P3 reaches 0.014; this color uses 100% of the sRGB chroma available.

CSS snippets

.element {
  color: #f0f8ff;
  color: rgb(240 248 255);
  color: hsl(208 100% 97%);
  color: oklch(0.975 0.013 244.3);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.975 0.013 244.3);
}
/* arbitrary values */
class="text-[#f0f8ff] bg-[oklch(0.975_0.013_244.3)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.9468 0.9715 0.9971); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #f0f8ff 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

#F8FFFF · oklch(1.000 0.013 244.3) · ΔL +0.06
#DCE4EB · oklch(0.915 0.013 244.3) · 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?