OKLCH to HEX: #6B7280

Also known as: Tailwind v3 gray-500

oklch(0.55102 0.02336 264.364) → #6B7280

Values are shown at full precision, so converting back gives exactly #6b7280. 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(0.55102 0.02336 264.364)
```

2. OKLCH → Oklab

a = C·cos H = -0.00229
b = C·sin H = -0.02325

3. Oklab → LMS′

l′ = L + 0.3963·a + 0.2158·b = 0.545094
m′ = L − 0.1056·a − 0.0639·b = 0.552747
s′ = L − 0.0895·a − 1.2915·b = 0.581249

4. cube

l = 0.545094³ = 0.161962
m = 0.552747³ = 0.168880
s = 0.581249³ = 0.196375

5. LMS → linear sRGB

R = 4.0767·l − 3.3077·m + 0.2310·s = 0.147029
G = −1.2684·l + 2.6098·m − 0.3413·s = 0.168270
B = −0.0042·l − 0.7034·m + 1.7076·s = 0.215859

6. linear → sRGB, × 255

R = 0.41961 × 255 = 107.00 → 107
G = 0.44706 × 255 = 114.00 → 114
B = 0.50196 × 255 = 128.00 → 128

7. RGB → HEX
```
#6B7280
```

All formats

HEX: #6b7280
RGB: rgb(107 114 128)
RGB (legacy): rgb(107, 114, 128)
HSL: hsl(220.00 8.94% 46.08%) → hsl(220 9% 46%)
HWB: hwb(220 42% 50%)
OKLCH: oklch(0.551 0.023 264.4) · oklch(55.1% 0.023 264.4)
OKLab: oklab(0.551 -0.002 -0.023)
Lab (D50): lab(47.81 -0.39 -8.70)
LCH (D50): lch(47.81 8.71 267.45)
Display P3: color(display-p3 0.4246 0.4462 0.4970)
Linear sRGB: color(srgb-linear 0.1470 0.1683 0.2159)

Gamut: sRGB and Display P3

#6B7280 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.248 and Display P3 reaches 0.265; this color uses 9% of the sRGB chroma available.

CSS snippets

.element {
  color: #6b7280;
  color: rgb(107 114 128);
  color: hsl(220 9% 46%);
  color: oklch(0.551 0.023 264.4);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.551 0.023 264.4);
}
/* arbitrary values */
class="text-[#6b7280] bg-[oklch(0.551_0.023_264.4)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.4246 0.4462 0.4970); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #6b7280 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

#7C8492 · oklch(0.611 0.023 264.4) · ΔL +0.06
#5A616E · oklch(0.491 0.023 264.4) · 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?