HEX to OKLCH: #FEF2F2

Also known as: Tailwind red-50, Tailwind v3 red-50

#FEF2F2 → oklch(0.971 0.013 17.4)

Values are shown at full precision, so converting back gives exactly #fef2f2. 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: 254/255 = 0.99608 → 0.991102  (((x + 0.055) / 1.055)^2.4)
G: 242/255 = 0.94902 → 0.887923  (((x + 0.055) / 1.055)^2.4)
B: 242/255 = 0.94902 → 0.887923  (((x + 0.055) / 1.055)^2.4)

2. linear sRGB → LMS

l = 0.4122·R + 0.5363·G + 0.0514·B = 0.930456
m = 0.2119·R + 0.6807·G + 0.1074·B = 0.909787
s = 0.0883·R + 0.2817·G + 0.6300·B = 0.897034

3. cube root

l′ = ∛0.930456 = 0.976259
m′ = ∛0.909787 = 0.968977
s′ = ∛0.897034 = 0.964428

4. LMS′ → Oklab

L = 0.2105·l′ + 0.7936·m′ − 0.0041·s′ = 0.97053
a = 1.9780·l′ − 2.4286·m′ + 0.4506·s′ = 0.01236
b = 0.0259·l′ + 0.7828·m′ − 0.8087·s′ = 0.00387

5. Oklab → OKLCH

C = √(a² + b²) = 0.01295
H = atan2(b, a) = 17.380°
L = 0.97053

6. OKLCH

oklch(0.97053 0.01295 17.380)
rounded: oklch(0.971 0.013 17.4)

All formats

HEX: #fef2f2
RGB: rgb(254 242 242)
RGB (legacy): rgb(254, 242, 242)
HSL: hsl(0.00 85.71% 97.25%) → hsl(0 86% 97%)
HWB: hwb(0 95% 0%)
OKLCH: oklch(0.971 0.013 17.4) · oklch(97.1% 0.013 17.4)
OKLab: oklab(0.971 0.012 0.004)
Lab (D50): lab(96.45 4.17 1.52)
LCH (D50): lch(96.45 4.44 20.00)
Display P3: color(display-p3 0.9879 0.9506 0.9498)
Linear sRGB: color(srgb-linear 0.9911 0.8879 0.8879)

Gamut: sRGB and Display P3

#FEF2F2 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.014 and Display P3 reaches 0.019; this color uses 90% of the sRGB chroma available.

CSS snippets

.element {
  color: #fef2f2;
  color: rgb(254 242 242);
  color: hsl(0 86% 97%);
  color: oklch(0.971 0.013 17.4);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.971 0.013 17.4);
}
/* arbitrary values */
class="text-[#fef2f2] bg-[oklch(0.971_0.013_17.4)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.9879 0.9506 0.9498); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #fef2f2 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

#FFFCFC · oklch(1.000 0.013 17.4) · ΔL +0.06
#EADEDE · oklch(0.911 0.013 17.4) · ΔL −0.06

Open in the studio

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Guides: What is OKLCH?