HEX to OKLCH: #8200DB

Also known as: Tailwind purple-700

#8200DB → oklch(0.498 0.263 301.7)

Values are shown at full precision, so converting back gives exactly #8200db. 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. sRGB → linear

R: 130/255 = 0.50980 → 0.223228  (((x + 0.055) / 1.055)^2.4)
G: 0/255 = 0.00000 → 0.000000  (÷ 12.92)
B: 219/255 = 0.85882 → 0.708376  (((x + 0.055) / 1.055)^2.4)

2. linear sRGB → LMS

l = 0.4122·R + 0.5363·G + 0.0514·B = 0.128462
m = 0.2119·R + 0.6807·G + 0.1074·B = 0.123380
s = 0.0883·R + 0.2817·G + 0.6300·B = 0.465973

3. cube root

l′ = ∛0.128462 = 0.504575
m′ = ∛0.123380 = 0.497831
s′ = ∛0.465973 = 0.775271

4. LMS′ → Oklab

L = 0.2105·l′ + 0.7936·m′ − 0.0041·s′ = 0.49812
a = 1.9780·l′ − 2.4286·m′ + 0.4506·s′ = 0.13835
b = 0.0259·l′ + 0.7828·m′ − 0.8087·s′ = -0.22418

5. Oklab → OKLCH

C = √(a² + b²) = 0.26344
H = atan2(b, a) = 301.680°
L = 0.49812

6. OKLCH

oklch(0.49812 0.26344 301.680)
rounded: oklch(0.498 0.263 301.7)

All formats

HEX: #8200db
RGB: rgb(130 0 219)
RGB (legacy): rgb(130, 0, 219)
HSL: hsl(275.62 100.00% 42.94%) → hsl(276 100% 43%)
HWB: hwb(276 0% 14%)
OKLCH: oklch(0.498 0.263 301.7) · oklch(49.8% 0.263 301.7)
OKLab: oklab(0.498 0.138 -0.224)
Lab (D50): lab(36.48 69.11 -79.76)
LCH (D50): lch(36.48 105.54 310.91)
Display P3: color(display-p3 0.4656 0.0817 0.8260)
Linear sRGB: color(srgb-linear 0.2232 0.0000 0.7084)

Gamut: sRGB and Display P3

#8200DB is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.263 and Display P3 reaches 0.275; this color uses 100% of the sRGB chroma available.

CSS snippets

.element {
  color: #8200db;
  color: rgb(130 0 219);
  color: hsl(276 100% 43%);
  color: oklch(0.498 0.263 301.7);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.498 0.263 301.7);
}
/* arbitrary values */
class="text-[#8200db] bg-[oklch(0.498_0.263_301.7)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.4656 0.0817 0.8260); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #8200db 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

#942DF0 · oklch(0.558 0.263 301.7) · ΔL +0.06
#7100C6 · oklch(0.438 0.263 301.7) · ΔL −0.06

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