HEX to OKLCH: #E4E4E7

Result

Values are shown at full precision, so converting back gives exactly #e4e4e7. 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: 228/255 = 0.89412 → 0.775822  (((x + 0.055) / 1.055)^2.4)
   G: 228/255 = 0.89412 → 0.775822  (((x + 0.055) / 1.055)^2.4)
   B: 231/255 = 0.90588 → 0.799103  (((x + 0.055) / 1.055)^2.4)

2. 2. linear sRGB → LMS

   l = 0.4122·R + 0.5363·G + 0.0514·B = 0.777020
   m = 0.2119·R + 0.6807·G + 0.1074·B = 0.778322
   s = 0.0883·R + 0.2817·G + 0.6300·B = 0.790488

3. 3. cube root

   l′ = ∛0.777020 = 0.919343
   m′ = ∛0.778322 = 0.919856
   s′ = ∛0.790488 = 0.924624

4. 4. LMS′ → Oklab

   L = 0.2105·l′ + 0.7936·m′ − 0.0041·s′ = 0.91973
   a = 1.9780·l′ − 2.4286·m′ + 0.4506·s′ = 0.00113
   b = 0.0259·l′ + 0.7828·m′ − 0.8087·s′ = -0.00387

5. 5. Oklab → OKLCH

   C = √(a² + b²) = 0.00403
   H = atan2(b, a) = 286.320°
   L = 0.91973

6. 6. OKLCH

   oklch(0.91973 0.00403 286.320)
   rounded: oklch(0.920 0.004 286.3)

All formats

HEX

#e4e4e7

RGB

rgb(228 228 231)

RGB (legacy)

rgb(228, 228, 231)

HSL

hsl(240.00 5.88% 90.00%) → hsl(240 6% 90%)

HWB

hwb(240 89% 9%)

OKLCH

oklch(0.920 0.004 286.3) · oklch(92.0% 0.004 286.3)

OKLab

oklab(0.920 0.001 -0.004)

Lab (D50)

lab(90.65 0.40 -1.47)

LCH (D50)

lch(90.65 1.52 285.35)

Display P3

color(display-p3 0.8941 0.8941 0.9048)

Linear sRGB

color(srgb-linear 0.7758 0.7758 0.7991)

Gamut: sRGB and Display P3

#E4E4E7 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.040 and Display P3 reaches 0.045; this color uses 10% of the sRGB chroma available.

CSS snippets

.element {
  color: #e4e4e7;
  color: rgb(228 228 231);
  color: hsl(240 6% 90%);
  color: oklch(0.920 0.004 286.3);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.920 0.004 286.3);
}
/* arbitrary values */
class="text-[#e4e4e7] bg-[oklch(0.920_0.004_286.3)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.8941 0.8941 0.9048); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #e4e4e7 calc(l - 0.1) c h); }

Nearby colors

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

• mauve-200#E7E4E7
• neutral-200#E5E5E5
• stone-200#E7E5E4
• taupe-200#E8E4E3
• mist-200#E3E7E8
• gray-200#E5E7EB
• slate-200#E2E8F0
• olive-200#E8E8E3

Lighter and darker, same hue and chroma

• #F8F8FB · oklch(0.980 0.004 286.3) · ΔL +0.06
• #D0D0D3 · oklch(0.860 0.004 286.3) · ΔL −0.06

Open in the studio