OKLCH to HEX: #708090

Also known as: CSS slategray, CSS slategrey

oklch(0.59250 0.03092 248.348) → #708090

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. input
```
oklch(0.59250 0.03092 248.348)
```

2. OKLCH → Oklab

a = C·cos H = -0.01141
b = C·sin H = -0.02874

3. Oklab → LMS′

l′ = L + 0.3963·a + 0.2158·b = 0.581777
m′ = L − 0.1056·a − 0.0639·b = 0.595539
s′ = L − 0.0895·a − 1.2915·b = 0.630636

4. cube

l = 0.581777³ = 0.196910
m = 0.595539³ = 0.211218
s = 0.630636³ = 0.250805

5. LMS → linear sRGB

R = 4.0767·l − 3.3077·m + 0.2310·s = 0.162032
G = −1.2684·l + 2.6098·m − 0.3413·s = 0.215855
B = −0.0042·l − 0.7034·m + 1.7076·s = 0.278877

6. linear → sRGB, × 255

R = 0.43922 × 255 = 112.00 → 112
G = 0.50195 × 255 = 128.00 → 128
B = 0.56469 × 255 = 144.00 → 144

7. RGB → HEX
```
#708090
```

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).

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

Open in the studio

Open in the OKLCH picker Check contrast on white

Other converters for this color

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Guides: What is OKLCH?