HEX to HSL: #7B68EE

Also known as: CSS mediumslateblue

#7B68EE → hsl(249 80% 67%)

Values are shown at full precision, so converting back gives exactly #7b68ee. 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 = 0.4824
G = 0.4078
B = 0.9333
```

2. max, min, Δ

max = 0.9333
min = 0.4078
Δ = max − min = 0.5255

3. L
```
L = (max + min) / 2 = 0.6706 = 67.06%
```

4. S

S = Δ / (1 − |2L − 1|) = 0.7976 = 79.76%

5. H

max is B → H = 60° × ((R − G) / Δ + 4) = 60° × ((0.4824 − 0.4078) / 0.5255 + 4) = 248.51°

6. HSL
```
hsl(248.51 79.76% 67.06%)
```

All formats

HEX: #7b68ee
RGB: rgb(123 104 238)
RGB (legacy): rgb(123, 104, 238)
HSL: hsl(248.51 79.76% 67.06%) → hsl(249 80% 67%)
HWB: hwb(249 41% 7%)
OKLCH: oklch(0.604 0.194 285.5) · oklch(60.4% 0.194 285.5)
OKLab: oklab(0.604 0.052 -0.187)
Lab (D50): lab(51.28 33.84 -66.48)
LCH (D50): lch(51.28 74.59 296.98)
Display P3: color(display-p3 0.4702 0.4106 0.9023)
Linear sRGB: color(srgb-linear 0.1981 0.1384 0.8550)

Gamut: sRGB and Display P3

#7B68EE is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.225 and Display P3 reaches 0.243; this color uses 86% of the sRGB chroma available.

CSS snippets

.element {
  color: #7b68ee;
  color: rgb(123 104 238);
  color: hsl(249 80% 67%);
  color: oklch(0.604 0.194 285.5);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.604 0.194 285.5);
}
/* arbitrary values */
class="text-[#7b68ee] bg-[oklch(0.604_0.194_285.5)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.4702 0.4106 0.9023); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #7b68ee 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

#8C7BFF · oklch(0.664 0.194 285.5) · ΔL +0.06
#6B55D9 · oklch(0.544 0.194 285.5) · ΔL −0.06

Open in the studio

Open in the OKLCH picker Check contrast on white

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Guides: What is OKLCH?