HEX to OKLCH: #708090

Result

Values are shown at full precision, so converting back gives exactly #708090. 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: 112/255 = 0.43922 → 0.162029  (((x + 0.055) / 1.055)^2.4)
   G: 128/255 = 0.50196 → 0.215861  (((x + 0.055) / 1.055)^2.4)
   B: 144/255 = 0.56471 → 0.278894  (((x + 0.055) / 1.055)^2.4)

2. 2. linear sRGB → LMS

   l = 0.4122·R + 0.5363·G + 0.0514·B = 0.196913
   m = 0.2119·R + 0.6807·G + 0.1074·B = 0.211223
   s = 0.0883·R + 0.2817·G + 0.6300·B = 0.250817

3. 3. cube root

   l′ = ∛0.196913 = 0.581779
   m′ = ∛0.211223 = 0.595544
   s′ = ∛0.250817 = 0.630646

4. 4. LMS′ → Oklab

   L = 0.2105·l′ + 0.7936·m′ − 0.0041·s′ = 0.59250
   a = 1.9780·l′ − 2.4286·m′ + 0.4506·s′ = -0.01141
   b = 0.0259·l′ + 0.7828·m′ − 0.8087·s′ = -0.02874

5. 5. Oklab → OKLCH

   C = √(a² + b²) = 0.03092
   H = atan2(b, a) = 248.348°
   L = 0.59250

6. 6. OKLCH

   oklch(0.59250 0.03092 248.348)
   rounded: oklch(0.593 0.031 248.3)

All formats

HEX

#708090

RGB

rgb(112 128 144)

RGB (legacy)

rgb(112, 128, 144)

HSL

hsl(210.00 12.60% 50.20%) → hsl(210 13% 50%)

HWB

hwb(210 44% 44%)

OKLCH

oklch(0.593 0.031 248.3) · oklch(59.3% 0.031 248.3)

OKLab

oklab(0.593 -0.011 -0.029)

Lab (D50)

lab(52.70 -3.28 -10.74)

LCH (D50)

lch(52.70 11.23 253.00)

Display P3

color(display-p3 0.4512 0.5000 0.5586)

Linear sRGB

color(srgb-linear 0.1620 0.2159 0.2789)

Gamut: sRGB and Display P3

#708090 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.161 and Display P3 reaches 0.208; this color uses 19% of the sRGB chroma available.

CSS snippets

.element {
  color: #708090;
  color: rgb(112 128 144);
  color: hsl(210 13% 50%);
  color: oklch(0.593 0.031 248.3);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.593 0.031 248.3);
}
/* arbitrary values */
class="text-[#708090] bg-[oklch(0.593_0.031_248.3)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.4512 0.5000 0.5586); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #708090 calc(l - 0.1) c h); }

Nearby colors

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

• lightslategray#778899
• gray#808080
• mist-500#67787C
• v3 slate-500#64748B
• slate-500#62748E
• gray-500#6A7282
• v3 gray-500#6B7280
• zinc-500#71717B

Lighter and darker, same hue and chroma

• #8292A2 · oklch(0.653 0.031 248.3) · ΔL +0.06
• #5F6E7E · oklch(0.532 0.031 248.3) · ΔL −0.06

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