HEX to OKLCH: #8A0194

Also known as: Tailwind fuchsia-800

#8A0194 → oklch(0.452 0.211 324.7)

Values are shown at full precision, so converting back gives exactly #8a0194. 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: 138/255 = 0.54118 → 0.254152  (((x + 0.055) / 1.055)^2.4)
G: 1/255 = 0.00392 → 0.000304  (÷ 12.92)
B: 148/255 = 0.58039 → 0.296138  (((x + 0.055) / 1.055)^2.4)

2. linear sRGB → LMS

l = 0.4122·R + 0.5363·G + 0.0514·B = 0.120165
m = 0.2119·R + 0.6807·G + 0.1074·B = 0.085867
s = 0.0883·R + 0.2817·G + 0.6300·B = 0.209089

3. cube root

l′ = ∛0.120165 = 0.493468
m′ = ∛0.085867 = 0.441172
s′ = ∛0.209089 = 0.593531

4. LMS′ → Oklab

L = 0.2105·l′ + 0.7936·m′ − 0.0041·s′ = 0.45156
a = 1.9780·l′ − 2.4286·m′ + 0.4506·s′ = 0.17209
b = 0.0259·l′ + 0.7828·m′ − 0.8087·s′ = -0.12185

5. Oklab → OKLCH

C = √(a² + b²) = 0.21087
H = atan2(b, a) = 324.699°
L = 0.45156

6. OKLCH

oklch(0.45156 0.21087 324.699)
rounded: oklch(0.452 0.211 324.7)

All formats

HEX: #8a0194
RGB: rgb(138 1 148)
RGB (legacy): rgb(138, 1, 148)
HSL: hsl(295.92 98.66% 29.22%) → hsl(296 99% 29%)
HWB: hwb(296 0% 42%)
OKLCH: oklch(0.452 0.211 324.7) · oklch(45.2% 0.211 324.7)
OKLab: oklab(0.452 0.172 -0.122)
Lab (D50): lab(32.86 60.28 -43.51)
LCH (D50): lch(32.86 74.34 324.17)
Display P3: color(display-p3 0.4946 0.0913 0.5602)
Linear sRGB: color(srgb-linear 0.2542 0.0003 0.2961)

Gamut: sRGB and Display P3

#8A0194 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.211 and Display P3 reaches 0.230; this color uses 100% of the sRGB chroma available.

CSS snippets

.element {
  color: #8a0194;
  color: rgb(138 1 148);
  color: hsl(296 99% 29%);
  color: oklch(0.452 0.211 324.7);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.452 0.211 324.7);
}
/* arbitrary values */
class="text-[#8a0194] bg-[oklch(0.452_0.211_324.7)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.4946 0.0913 0.5602); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #8a0194 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

#9D25A7 · oklch(0.512 0.211 324.7) · ΔL +0.06
#770081 · oklch(0.392 0.211 324.7) · ΔL −0.06

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