RGB to HEX: #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. base 10 → base 16

   R = 255 = 15×16 + 15 → FF
   G = 255 = 15×16 + 15 → FF
   B = 255 = 15×16 + 15 → FF

2. 2. pairs → HEX

   FF FF FF → #FFFFFF

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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