HEX to OKLCH: #E5E5E5

Result

Values are shown at full precision, so converting back gives exactly #e5e5e5. 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: 229/255 = 0.89804 → 0.783538  (((x + 0.055) / 1.055)^2.4)
   G: 229/255 = 0.89804 → 0.783538  (((x + 0.055) / 1.055)^2.4)
   B: 229/255 = 0.89804 → 0.783538  (((x + 0.055) / 1.055)^2.4)

2. 2. linear sRGB → LMS

   l = 0.4122·R + 0.5363·G + 0.0514·B = 0.783538
   m = 0.2119·R + 0.6807·G + 0.1074·B = 0.783538
   s = 0.0883·R + 0.2817·G + 0.6300·B = 0.783538

3. 3. cube root

   l′ = ∛0.783538 = 0.921906
   m′ = ∛0.783538 = 0.921906
   s′ = ∛0.783538 = 0.921906

4. 4. LMS′ → Oklab

   L = 0.2105·l′ + 0.7936·m′ − 0.0041·s′ = 0.92191
   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 = 0.92191

6. 6. OKLCH

   oklch(0.92191 0.00000 0.000)
   rounded: oklch(0.922 0.000 0.0)

All formats

HEX

#e5e5e5

RGB

rgb(229 229 229)

RGB (legacy)

rgb(229, 229, 229)

HSL

hsl(0.00 0.00% 89.80%) → hsl(0 0% 90%)

HWB

hwb(0 90% 10%)

OKLCH

oklch(0.922 0.000 0.0) · oklch(92.2% 0.000 0.0)

OKLab

oklab(0.922 0.000 0.000)

Lab (D50)

lab(90.94 0.00 0.00)

LCH (D50)

lch(90.94 0.00 0.00)

Display P3

color(display-p3 0.8980 0.8980 0.8980)

Linear sRGB

color(srgb-linear 0.7835 0.7835 0.7835)

Gamut: sRGB and Display P3

#E5E5E5 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.043 and Display P3 reaches 0.057; this color uses 0% of the sRGB chroma available.

CSS snippets

.element {
  color: #e5e5e5;
  color: rgb(229 229 229);
  color: hsl(0 0% 90%);
  color: oklch(0.922 0.000 0.0);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.922 0.000 0.0);
}
/* arbitrary values */
class="text-[#e5e5e5] bg-[oklch(0.922_0.000_0.0)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.8980 0.8980 0.8980); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #e5e5e5 calc(l - 0.1) c h); }

Nearby colors

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

• stone-200#E7E5E4
• taupe-200#E8E4E3
• zinc-200#E4E4E7
• mauve-200#E7E4E7
• mist-200#E3E7E8
• gray-200#E5E7EB
• olive-200#E8E8E3
• slate-200#E2E8F0

Lighter and darker, same hue and chroma

• #F9F9F9 · oklch(0.982 0.000 0.0) · ΔL +0.06
• #D1D1D1 · oklch(0.862 0.000 0.0) · ΔL −0.06

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