HEX to OKLCH: #4B004F

Also known as: Tailwind fuchsia-950

#4B004F → oklch(0.293 0.136 325.8)

Values are shown at full precision, so converting back gives exactly #4b004f. 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: 75/255 = 0.29412 → 0.070360  (((x + 0.055) / 1.055)^2.4)
G: 0/255 = 0.00000 → 0.000000  (÷ 12.92)
B: 79/255 = 0.30980 → 0.078187  (((x + 0.055) / 1.055)^2.4)

2. linear sRGB → LMS

l = 0.4122·R + 0.5363·G + 0.0514·B = 0.033026
m = 0.2119·R + 0.6807·G + 0.1074·B = 0.023307
s = 0.0883·R + 0.2817·G + 0.6300·B = 0.055469

3. cube root

l′ = ∛0.033026 = 0.320839
m′ = ∛0.023307 = 0.285645
s′ = ∛0.055469 = 0.381374

4. LMS′ → Oklab

L = 0.2105·l′ + 0.7936·m′ − 0.0041·s′ = 0.29266
a = 1.9780·l′ − 2.4286·m′ + 0.4506·s′ = 0.11275
b = 0.0259·l′ + 0.7828·m′ − 0.8087·s′ = -0.07650

5. Oklab → OKLCH

C = √(a² + b²) = 0.13625
H = atan2(b, a) = 325.842°
L = 0.29266

6. OKLCH

oklch(0.29266 0.13625 325.842)
rounded: oklch(0.293 0.136 325.8)

All formats

HEX: #4b004f
RGB: rgb(75 0 79)
RGB (legacy): rgb(75, 0, 79)
HSL: hsl(296.96 100.00% 15.49%) → hsl(297 100% 15%)
HWB: hwb(297 0% 69%)
OKLCH: oklch(0.293 0.136 325.8) · oklch(29.3% 0.136 325.8)
OKLab: oklab(0.293 0.113 -0.077)
Lab (D50): lab(15.69 39.13 -27.33)
LCH (D50): lch(15.69 47.73 325.07)
Display P3: color(display-p3 0.2668 0.0302 0.2983)
Linear sRGB: color(srgb-linear 0.0704 0.0000 0.0782)

Gamut: sRGB and Display P3

#4B004F is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.136 and Display P3 reaches 0.148; this color uses 100% of the sRGB chroma available.

CSS snippets

.element {
  color: #4b004f;
  color: rgb(75 0 79);
  color: hsl(297 100% 15%);
  color: oklch(0.293 0.136 325.8);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.293 0.136 325.8);
}
/* arbitrary values */
class="text-[#4b004f] bg-[oklch(0.293_0.136_325.8)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.2668 0.0302 0.2983); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #4b004f 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

#5D1760 · oklch(0.353 0.136 325.8) · ΔL +0.06
#3A003E · oklch(0.233 0.136 325.8) · ΔL −0.06

Open in the studio

Open in the OKLCH picker Check contrast on white

Other converters for this color

All converters →

Guides: What is OKLCH?