HEX to OKLCH: #4A044E

Also known as: Tailwind v3 fuchsia-950

#4A044E → oklch(0.293 0.131 325.7)

Values are shown at full precision, so converting back gives exactly #4a044e. 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: 74/255 = 0.29020 → 0.068478  (((x + 0.055) / 1.055)^2.4)
G: 4/255 = 0.01569 → 0.001214  (÷ 12.92)
B: 78/255 = 0.30588 → 0.076185  (((x + 0.055) / 1.055)^2.4)

2. linear sRGB → LMS

l = 0.4122·R + 0.5363·G + 0.0514·B = 0.032799
m = 0.2119·R + 0.6807·G + 0.1074·B = 0.023519
s = 0.0883·R + 0.2817·G + 0.6300·B = 0.054384

3. cube root

l′ = ∛0.032799 = 0.320100
m′ = ∛0.023519 = 0.286511
s′ = ∛0.054384 = 0.378870

4. LMS′ → Oklab

L = 0.2105·l′ + 0.7936·m′ − 0.0041·s′ = 0.29320
a = 1.9780·l′ − 2.4286·m′ + 0.4506·s′ = 0.10806
b = 0.0259·l′ + 0.7828·m′ − 0.8087·s′ = -0.07382

5. Oklab → OKLCH

C = √(a² + b²) = 0.13086
H = atan2(b, a) = 325.661°
L = 0.29320

6. OKLCH

oklch(0.29320 0.13086 325.661)
rounded: oklch(0.293 0.131 325.7)

All formats

HEX: #4a044e
RGB: rgb(74 4 78)
RGB (legacy): rgb(74, 4, 78)
HSL: hsl(296.76 90.24% 16.08%) → hsl(297 90% 16%)
HWB: hwb(297 2% 69%)
OKLCH: oklch(0.293 0.131 325.7) · oklch(29.3% 0.131 325.7)
OKLab: oklab(0.293 0.108 -0.074)
Lab (D50): lab(15.86 37.50 -26.39)
LCH (D50): lch(15.86 45.85 324.86)
Display P3: color(display-p3 0.2637 0.0444 0.2947)
Linear sRGB: color(srgb-linear 0.0685 0.0012 0.0762)

Gamut: sRGB and Display P3

#4A044E is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.137 and Display P3 reaches 0.149; this color uses 96% of the sRGB chroma available.

CSS snippets

.element {
  color: #4a044e;
  color: rgb(74 4 78);
  color: hsl(297 90% 16%);
  color: oklch(0.293 0.131 325.7);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.293 0.131 325.7);
}
/* arbitrary values */
class="text-[#4a044e] bg-[oklch(0.293_0.131_325.7)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.2637 0.0444 0.2947); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #4a044e 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

#5B1A5F · oklch(0.353 0.131 325.7) · ΔL +0.06
#39003D · oklch(0.233 0.131 325.7) · ΔL −0.06

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