HEX to OKLCH: #FFFFFF

Result

Values are shown at full precision, so converting back gives exactly #ffffff. 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. 1. sRGB → linear

   R: 255/255 = 1.00000 → 1.000000  (((x + 0.055) / 1.055)^2.4)
   G: 255/255 = 1.00000 → 1.000000  (((x + 0.055) / 1.055)^2.4)
   B: 255/255 = 1.00000 → 1.000000  (((x + 0.055) / 1.055)^2.4)

2. 2. linear sRGB → LMS

   l = 0.4122·R + 0.5363·G + 0.0514·B = 1.000000
   m = 0.2119·R + 0.6807·G + 0.1074·B = 1.000000
   s = 0.0883·R + 0.2817·G + 0.6300·B = 1.000000

3. 3. cube root

   l′ = ∛1.000000 = 1.000000
   m′ = ∛1.000000 = 1.000000
   s′ = ∛1.000000 = 1.000000

4. 4. LMS′ → Oklab

   L = 0.2105·l′ + 0.7936·m′ − 0.0041·s′ = 1.00000
   a = 1.9780·l′ − 2.4286·m′ + 0.4506·s′ = 0.00000
   b = 0.0259·l′ + 0.7828·m′ − 0.8087·s′ = 0.00000

5. 5. Oklab → OKLCH

   C = √(a² + b²) = 0.00000
   H: a and b are ~0, so the hue is undefined (written as 0)
   L = 1.00000

6. 6. OKLCH

   oklch(1.00000 0.00000 0.000)
   rounded: oklch(1.000 0.000 0.0)

All formats

HEX

#ffffff

RGB

rgb(255 255 255)

RGB (legacy)

rgb(255, 255, 255)

HSL

hsl(0.00 0.00% 100.00%) → hsl(0 0% 100%)

HWB

hwb(0 100% 0%)

OKLCH

oklch(1.000 0.000 0.0) · oklch(100.0% 0.000 0.0)

OKLab

oklab(1.000 0.000 0.000)

Lab (D50)

lab(100.00 0.00 0.00)

LCH (D50)

lch(100.00 0.00 0.00)

Display P3

color(display-p3 1.0000 1.0000 1.0000)

Linear sRGB

color(srgb-linear 1.0000 1.0000 1.0000)

Gamut: sRGB and Display P3

#FFFFFF is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.000 and Display P3 reaches 0.000; this color uses 0% of the sRGB chroma available.

CSS snippets

.element {
  color: #ffffff;
  color: rgb(255 255 255);
  color: hsl(0 0% 100%);
  color: oklch(1.000 0.000 0.0);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(1.000 0.000 0.0);
}
/* arbitrary values */
class="text-[#ffffff] bg-[oklch(1.000_0.000_0.0)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 1.0000 1.0000 1.0000); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #ffffff calc(l - 0.1) c h); }

Nearby colors

Closest colors in the Tailwind and CSS named palettes (OKLab distance).

• snow#FFFAFA
• olive-50#FBFBF9
• mist-50#F9FBFB
• taupe-50#FBFAF9
• mauve-50#FAFAFA
• mintcream#F5FFFA
• stone-50#FAFAF9
• gray-50#F9FAFB

Lighter and darker, same hue and chroma

• #FFFFFF · oklch(1.000 0.000 0.0) · ΔL +0.06
• #EBEBEB · oklch(0.940 0.000 0.0) · ΔL −0.06

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