HEX to OKLCH: #FBFBF9

Result

Values are shown at full precision, so converting back gives exactly #fbfbf9. 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: 251/255 = 0.98431 → 0.964686  (((x + 0.055) / 1.055)^2.4)
   G: 251/255 = 0.98431 → 0.964686  (((x + 0.055) / 1.055)^2.4)
   B: 249/255 = 0.97647 → 0.947307  (((x + 0.055) / 1.055)^2.4)

2. 2. linear sRGB → LMS

   l = 0.4122·R + 0.5363·G + 0.0514·B = 0.963792
   m = 0.2119·R + 0.6807·G + 0.1074·B = 0.962820
   s = 0.0883·R + 0.2817·G + 0.6300·B = 0.953737

3. 3. cube root

   l′ = ∛0.963792 = 0.987782
   m′ = ∛0.962820 = 0.987450
   s′ = ∛0.953737 = 0.984335

4. 4. LMS′ → Oklab

   L = 0.2105·l′ + 0.7936·m′ − 0.0041·s′ = 0.98753
   a = 1.9780·l′ − 2.4286·m′ + 0.4506·s′ = -0.00075
   b = 0.0259·l′ + 0.7828·m′ − 0.8087·s′ = 0.00253

5. 5. Oklab → OKLCH

   C = √(a² + b²) = 0.00264
   H = atan2(b, a) = 106.448°
   L = 0.98753

6. 6. OKLCH

   oklch(0.98753 0.00264 106.448)
   rounded: oklch(0.988 0.003 106.4)

All formats

HEX

#fbfbf9

RGB

rgb(251 251 249)

RGB (legacy)

rgb(251, 251, 249)

HSL

hsl(60.00 20.00% 98.04%) → hsl(60 20% 98%)

HWB

hwb(60 98% 2%)

OKLCH

oklch(0.988 0.003 106.4) · oklch(98.8% 0.003 106.4)

OKLab

oklab(0.988 -0.001 0.003)

Lab (D50)

lab(98.58 -0.26 0.96)

LCH (D50)

lch(98.58 1.00 105.19)

Display P3

color(display-p3 0.9843 0.9843 0.9772)

Linear sRGB

color(srgb-linear 0.9647 0.9647 0.9473)

Gamut: sRGB and Display P3

#FBFBF9 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.055 and Display P3 reaches 0.057; this color uses 5% of the sRGB chroma available.

CSS snippets

.element {
  color: #fbfbf9;
  color: rgb(251 251 249);
  color: hsl(60 20% 98%);
  color: oklch(0.988 0.003 106.4);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.988 0.003 106.4);
}
/* arbitrary values */
class="text-[#fbfbf9] bg-[oklch(0.988_0.003_106.4)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.9843 0.9843 0.9772); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #fbfbf9 calc(l - 0.1) c h); }

Nearby colors

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

• taupe-50#FBFAF9
• stone-50#FAFAF9
• mist-50#F9FBFB
• mauve-50#FAFAFA
• gray-50#F9FAFB
• snow#FFFAFA
• slate-50#F8FAFC
• mintcream#F5FFFA

Lighter and darker, same hue and chroma

• #FFFFFD · oklch(1.000 0.003 106.4) · ΔL +0.06
• #E7E7E5 · oklch(0.928 0.003 106.4) · ΔL −0.06

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