HEX to OKLCH: #020618

Result

Values are shown at full precision, so converting back gives exactly #020618. 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: 2/255 = 0.00784 → 0.000607  (÷ 12.92)
   G: 6/255 = 0.02353 → 0.001821  (÷ 12.92)
   B: 24/255 = 0.09412 → 0.009134  (((x + 0.055) / 1.055)^2.4)

2. 2. linear sRGB → LMS

   l = 0.4122·R + 0.5363·G + 0.0514·B = 0.001697
   m = 0.2119·R + 0.6807·G + 0.1074·B = 0.002349
   s = 0.0883·R + 0.2817·G + 0.6300·B = 0.006321

3. 3. cube root

   l′ = ∛0.001697 = 0.119276
   m′ = ∛0.002349 = 0.132937
   s′ = ∛0.006321 = 0.184896

4. 4. LMS′ → Oklab

   L = 0.2105·l′ + 0.7936·m′ − 0.0041·s′ = 0.12985
   a = 1.9780·l′ − 2.4286·m′ + 0.4506·s′ = -0.00361
   b = 0.0259·l′ + 0.7828·m′ − 0.8087·s′ = -0.04237

5. 5. Oklab → OKLCH

   C = √(a² + b²) = 0.04253
   H = atan2(b, a) = 265.132°
   L = 0.12985

6. 6. OKLCH

   oklch(0.12985 0.04253 265.132)
   rounded: oklch(0.130 0.043 265.1)

All formats

HEX

#020618

RGB

rgb(2 6 24)

RGB (legacy)

rgb(2, 6, 24)

HSL

hsl(229.09 84.62% 5.10%) → hsl(229 85% 5%)

HWB

hwb(229 1% 91%)

OKLCH

oklch(0.130 0.043 265.1) · oklch(13.0% 0.043 265.1)

OKLab

oklab(0.130 -0.004 -0.042)

Lab (D50)

lab(1.80 1.41 -9.56)

LCH (D50)

lch(1.80 9.66 278.41)

Display P3

color(display-p3 0.0106 0.0230 0.0894)

Linear sRGB

color(srgb-linear 0.0006 0.0018 0.0091)

Gamut: sRGB and Display P3

#020618 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.089 and Display P3 reaches 0.089; this color uses 48% of the sRGB chroma available.

CSS snippets

.element {
  color: #020618;
  color: rgb(2 6 24);
  color: hsl(229 85% 5%);
  color: oklch(0.130 0.043 265.1);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.130 0.043 265.1);
}
/* arbitrary values */
class="text-[#020618] bg-[oklch(0.130_0.043_265.1)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.0106 0.0230 0.0894); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #020618 calc(l - 0.1) c h); }

Nearby colors

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

• v3 slate-950#020617
• gray-950#030712
• zinc-950#09090B
• mauve-950#0C090C
• mist-950#090B0C
• neutral-950#0A0A0A
• stone-950#0C0A09
• olive-950#0C0C09

Lighter and darker, same hue and chroma

• #0A1327 · oklch(0.190 0.043 265.1) · ΔL +0.06
• #00000A · oklch(0.070 0.043 265.1) · ΔL −0.06

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