HEX to OKLCH: #FFF8DC

Also known as: CSS cornsilk

#FFF8DC → oklch(0.977 0.037 95.4)

Values are shown at full precision, so converting back gives exactly #fff8dc. 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: 248/255 = 0.97255 → 0.938686  (((x + 0.055) / 1.055)^2.4)
B: 220/255 = 0.86275 → 0.715694  (((x + 0.055) / 1.055)^2.4)

2. linear sRGB → LMS

l = 0.4122·R + 0.5363·G + 0.0514·B = 0.952489
m = 0.2119·R + 0.6807·G + 0.1074·B = 0.927730
s = 0.0883·R + 0.2817·G + 0.6300·B = 0.803620

3. cube root

l′ = ∛0.952489 = 0.983905
m′ = ∛0.927730 = 0.975305
s′ = ∛0.803620 = 0.929716

4. LMS′ → Oklab

L = 0.2105·l′ + 0.7936·m′ − 0.0041·s′ = 0.97730
a = 1.9780·l′ − 2.4286·m′ + 0.4506·s′ = -0.00353
b = 0.0259·l′ + 0.7828·m′ − 0.8087·s′ = 0.03709

5. Oklab → OKLCH

C = √(a² + b²) = 0.03726
H = atan2(b, a) = 95.439°
L = 0.97730

6. OKLCH

oklch(0.97730 0.03726 95.439)
rounded: oklch(0.977 0.037 95.4)

All formats

HEX: #fff8dc
RGB: rgb(255 248 220)
RGB (legacy): rgb(255, 248, 220)
HSL: hsl(48.00 100.00% 93.14%) → hsl(48 100% 93%)
HWB: hwb(48 86% 0%)
OKLCH: oklch(0.977 0.037 95.4) · oklch(97.7% 0.037 95.4)
OKLab: oklab(0.977 -0.004 0.037)
Lab (D50): lab(97.58 -0.96 14.39)
LCH (D50): lch(97.58 14.42 93.80)
Display P3: color(display-p3 0.9952 0.9735 0.8739)
Linear sRGB: color(srgb-linear 1.0000 0.9387 0.7157)

Gamut: sRGB and Display P3

#FFF8DC is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.037 and Display P3 reaches 0.044; this color uses 100% of the sRGB chroma available.

CSS snippets

.element {
  color: #fff8dc;
  color: rgb(255 248 220);
  color: hsl(48 100% 93%);
  color: oklch(0.977 0.037 95.4);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.977 0.037 95.4);
}
/* arbitrary values */
class="text-[#fff8dc] bg-[oklch(0.977_0.037_95.4)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.9952 0.9735 0.8739); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #fff8dc 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

#FFFFE3 · oklch(1.000 0.037 95.4) · ΔL +0.06
#EBE4C8 · oklch(0.917 0.037 95.4) · ΔL −0.06

Open in the studio

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