HEX to HSL: #6495ED

Also known as: CSS cornflowerblue

#6495ED → hsl(219 79% 66%)

Values are shown at full precision, so converting back gives exactly #6495ed. 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 = 0.3922
G = 0.5843
B = 0.9294
```

2. max, min, Δ

max = 0.9294
min = 0.3922
Δ = max − min = 0.5373

3. L
```
L = (max + min) / 2 = 0.6608 = 66.08%
```

4. S

S = Δ / (1 − |2L − 1|) = 0.7919 = 79.19%

5. H

max is B → H = 60° × ((R − G) / Δ + 4) = 60° × ((0.3922 − 0.5843) / 0.5373 + 4) = 218.54°

6. HSL
```
hsl(218.54 79.19% 66.08%)
```

All formats

HEX: #6495ed
RGB: rgb(100 149 237)
RGB (legacy): rgb(100, 149, 237)
HSL: hsl(218.54 79.19% 66.08%) → hsl(219 79% 66%)
HWB: hwb(219 39% 7%)
OKLCH: oklch(0.675 0.141 261.3) · oklch(67.5% 0.141 261.3)
OKLab: oklab(0.675 -0.021 -0.140)
Lab (D50): lab(61.23 3.05 -50.19)
LCH (D50): lch(61.23 50.28 273.47)
Display P3: color(display-p3 0.4343 0.5792 0.9038)
Linear sRGB: color(srgb-linear 0.1274 0.3005 0.8469)

Gamut: sRGB and Display P3

#6495ED is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.172 and Display P3 reaches 0.186; this color uses 82% of the sRGB chroma available.

CSS snippets

.element {
  color: #6495ed;
  color: rgb(100 149 237);
  color: hsl(219 79% 66%);
  color: oklch(0.675 0.141 261.3);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.675 0.141 261.3);
}
/* arbitrary values */
class="text-[#6495ed] bg-[oklch(0.675_0.141_261.3)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.4343 0.5792 0.9038); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #6495ed 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

#76A8FF · oklch(0.735 0.141 261.3) · ΔL +0.06
#5382D9 · oklch(0.615 0.141 261.3) · 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?