HEX to OKLCH: #D946EF

Also known as: Tailwind v3 fuchsia-500

#D946EF → oklch(0.667 0.259 322.1)

Values are shown at full precision, so converting back gives exactly #d946ef. 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: 217/255 = 0.85098 → 0.693872  (((x + 0.055) / 1.055)^2.4)
G: 70/255 = 0.27451 → 0.061246  (((x + 0.055) / 1.055)^2.4)
B: 239/255 = 0.93725 → 0.863157  (((x + 0.055) / 1.055)^2.4)

2. linear sRGB → LMS

l = 0.4122·R + 0.5363·G + 0.0514·B = 0.363283
m = 0.2119·R + 0.6807·G + 0.1074·B = 0.281424
s = 0.0883·R + 0.2817·G + 0.6300·B = 0.622295

3. cube root

l′ = ∛0.363283 = 0.713535
m′ = ∛0.281424 = 0.655321
s′ = ∛0.622295 = 0.853753

4. LMS′ → Oklab

L = 0.2105·l′ + 0.7936·m′ − 0.0041·s′ = 0.66676
a = 1.9780·l′ − 2.4286·m′ + 0.4506·s′ = 0.20456
b = 0.0259·l′ + 0.7828·m′ − 0.8087·s′ = -0.15896

5. Oklab → OKLCH

C = √(a² + b²) = 0.25906
H = atan2(b, a) = 322.150°
L = 0.66676

6. OKLCH

oklch(0.66676 0.25906 322.150)
rounded: oklch(0.667 0.259 322.1)

All formats

HEX: #d946ef
RGB: rgb(217 70 239)
RGB (legacy): rgb(217, 70, 239)
HSL: hsl(292.19 84.08% 60.59%) → hsl(292 84% 61%)
HWB: hwb(292 27% 6%)
OKLCH: oklch(0.667 0.259 322.1) · oklch(66.7% 0.259 322.1)
OKLab: oklab(0.667 0.205 -0.159)
Lab (D50): lab(57.14 72.49 -56.90)
LCH (D50): lch(57.14 92.15 321.87)
Display P3: color(display-p3 0.7867 0.3176 0.9074)
Linear sRGB: color(srgb-linear 0.6939 0.0612 0.8632)

Gamut: sRGB and Display P3

#D946EF is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.307 and Display P3 reaches 0.335; this color uses 84% of the sRGB chroma available.

CSS snippets

.element {
  color: #d946ef;
  color: rgb(217 70 239);
  color: hsl(292 84% 61%);
  color: oklch(0.667 0.259 322.1);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.667 0.259 322.1);
}
/* arbitrary values */
class="text-[#d946ef] bg-[oklch(0.667_0.259_322.1)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.7867 0.3176 0.9074); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #d946ef 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

#EE5CFF · oklch(0.727 0.259 322.1) · ΔL +0.06
#C52DDA · oklch(0.607 0.259 322.1) · ΔL −0.06

Open in the studio

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