HEX to OKLCH: #94A3B8

Result

Values are shown at full precision, so converting back gives exactly #94a3b8. 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: 148/255 = 0.58039 → 0.296138  (((x + 0.055) / 1.055)^2.4)
   G: 163/255 = 0.63922 → 0.366253  (((x + 0.055) / 1.055)^2.4)
   B: 184/255 = 0.72157 → 0.479320  (((x + 0.055) / 1.055)^2.4)

2. 2. linear sRGB → LMS

   l = 0.4122·R + 0.5363·G + 0.0514·B = 0.343167
   m = 0.2119·R + 0.6807·G + 0.1074·B = 0.363538
   s = 0.0883·R + 0.2817·G + 0.6300·B = 0.431292

3. 3. cube root

   l′ = ∛0.343167 = 0.700113
   m′ = ∛0.363538 = 0.713702
   s′ = ∛0.431292 = 0.755539

4. 4. LMS′ → Oklab

   L = 0.2105·l′ + 0.7936·m′ − 0.0041·s′ = 0.71067
   a = 1.9780·l′ − 2.4286·m′ + 0.4506·s′ = -0.00803
   b = 0.0259·l′ + 0.7828·m′ − 0.8087·s′ = -0.03418

5. 5. Oklab → OKLCH

   C = √(a² + b²) = 0.03511
   H = atan2(b, a) = 256.788°
   L = 0.71067

6. 6. OKLCH

   oklch(0.71067 0.03511 256.788)
   rounded: oklch(0.711 0.035 256.8)

All formats

HEX

#94a3b8

RGB

rgb(148 163 184)

RGB (legacy)

rgb(148, 163, 184)

HSL

hsl(215.00 20.22% 65.10%) → hsl(215 20% 65%)

HWB

hwb(215 58% 28%)

OKLCH

oklch(0.711 0.035 256.8) · oklch(71.1% 0.035 256.8)

OKLab

oklab(0.711 -0.008 -0.034)

Lab (D50)

lab(66.33 -2.06 -12.77)

LCH (D50)

lch(66.33 12.93 260.84)

Display P3

color(display-p3 0.5914 0.6374 0.7139)

Linear sRGB

color(srgb-linear 0.2961 0.3663 0.4793)

Gamut: sRGB and Display P3

#94A3B8 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.153 and Display P3 reaches 0.165; this color uses 23% of the sRGB chroma available.

CSS snippets

.element {
  color: #94a3b8;
  color: rgb(148 163 184);
  color: hsl(215 20% 65%);
  color: oklch(0.711 0.035 256.8);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.711 0.035 256.8);
}
/* arbitrary values */
class="text-[#94a3b8] bg-[oklch(0.711_0.035_256.8)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.5914 0.6374 0.7139); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #94a3b8 calc(l - 0.1) c h); }

Nearby colors

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

• slate-400#90A1B9
• gray-400#99A1AF
• v3 gray-400#9CA3AF
• zinc-400#9F9FA9
• v3 zinc-400#A1A1AA
• mist-400#9CA8AB
• mauve-400#A89EA9
• neutral-400#A1A1A1

Lighter and darker, same hue and chroma

• #A6B6CB · oklch(0.771 0.035 256.8) · ΔL +0.06
• #8291A5 · oklch(0.651 0.035 256.8) · ΔL −0.06

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