HEX to OKLCH: #FFF5EE

Also known as: CSS seashell

#FFF5EE → oklch(0.976 0.014 57.6)

Values are shown at full precision, so converting back gives exactly #fff5ee. 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: 255/255 = 1.00000 → 1.000000  (((x + 0.055) / 1.055)^2.4)
G: 245/255 = 0.96078 → 0.913099  (((x + 0.055) / 1.055)^2.4)
B: 238/255 = 0.93333 → 0.854993  (((x + 0.055) / 1.055)^2.4)

2. linear sRGB → LMS

l = 0.4122·R + 0.5363·G + 0.0514·B = 0.945932
m = 0.2119·R + 0.6807·G + 0.1074·B = 0.925273
s = 0.0883·R + 0.2817·G + 0.6300·B = 0.884167

3. cube root

l′ = ∛0.945932 = 0.981642
m′ = ∛0.925273 = 0.974443
s′ = ∛0.884167 = 0.959794

4. LMS′ → Oklab

L = 0.2105·l′ + 0.7936·m′ − 0.0041·s′ = 0.97602
a = 1.9780·l′ − 2.4286·m′ + 0.4506·s′ = 0.00764
b = 0.0259·l′ + 0.7828·m′ − 0.8087·s′ = 0.01203

5. Oklab → OKLCH

C = √(a² + b²) = 0.01425
H = atan2(b, a) = 57.592°
L = 0.97602

6. OKLCH

oklch(0.97602 0.01425 57.592)
rounded: oklch(0.976 0.014 57.6)

All formats

HEX: #fff5ee
RGB: rgb(255 245 238)
RGB (legacy): rgb(255, 245, 238)
HSL: hsl(24.71 100.00% 96.67%) → hsl(25 100% 97%)
HWB: hwb(25 93% 0%)
OKLCH: oklch(0.976 0.014 57.6) · oklch(97.6% 0.014 57.6)
OKLab: oklab(0.976 0.008 0.012)
Lab (D50): lab(97.18 2.59 4.64)
LCH (D50): lch(97.18 5.31 60.82)
Display P3: color(display-p3 0.9932 0.9621 0.9365)
Linear sRGB: color(srgb-linear 1.0000 0.9131 0.8550)

Gamut: sRGB and Display P3

#FFF5EE 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 0.018; this color uses 100% of the sRGB chroma available.

CSS snippets

.element {
  color: #fff5ee;
  color: rgb(255 245 238);
  color: hsl(25 100% 97%);
  color: oklch(0.976 0.014 57.6);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.976 0.014 57.6);
}
/* arbitrary values */
class="text-[#fff5ee] bg-[oklch(0.976_0.014_57.6)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.9932 0.9621 0.9365); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #fff5ee 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

#FFFDF6 · oklch(1.000 0.014 57.6) · ΔL +0.06
#EBE1DA · oklch(0.916 0.014 57.6) · ΔL −0.06

Open in the studio

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Guides: What is OKLCH?