HEX to OKLCH: #0069A8

Result

Values are shown at full precision, so converting back gives exactly #0069a8. 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: 0/255 = 0.00000 → 0.000000  (÷ 12.92)
   G: 105/255 = 0.41176 → 0.141263  (((x + 0.055) / 1.055)^2.4)
   B: 168/255 = 0.65882 → 0.391572  (((x + 0.055) / 1.055)^2.4)

2. 2. linear sRGB → LMS

   l = 0.4122·R + 0.5363·G + 0.0514·B = 0.095909
   m = 0.2119·R + 0.6807·G + 0.1074·B = 0.138212
   s = 0.0883·R + 0.2817·G + 0.6300·B = 0.286479

3. 3. cube root

   l′ = ∛0.095909 = 0.457741
   m′ = ∛0.138212 = 0.517029
   s′ = ∛0.286479 = 0.659221

4. 4. LMS′ → Oklab

   L = 0.2105·l′ + 0.7936·m′ − 0.0041·s′ = 0.50397
   a = 1.9780·l′ − 2.4286·m′ + 0.4506·s′ = -0.05320
   b = 0.0259·l′ + 0.7828·m′ − 0.8087·s′ = -0.11652

5. 5. Oklab → OKLCH

   C = √(a² + b²) = 0.12809
   H = atan2(b, a) = 245.460°
   L = 0.50397

6. 6. OKLCH

   oklch(0.50397 0.12809 245.460)
   rounded: oklch(0.504 0.128 245.5)

All formats

HEX

#0069a8

RGB

rgb(0 105 168)

RGB (legacy)

rgb(0, 105, 168)

HSL

hsl(202.50 100.00% 32.94%) → hsl(203 100% 33%)

HWB

hwb(203 0% 34%)

OKLCH

oklch(0.504 0.128 245.5) · oklch(50.4% 0.128 245.5)

OKLab

oklab(0.504 -0.053 -0.117)

Lab (D50)

lab(42.00 -7.19 -41.68)

LCH (D50)

lch(42.00 42.30 260.21)

Display P3

color(display-p3 0.1721 0.4052 0.6396)

Linear sRGB

color(srgb-linear 0.0000 0.1413 0.3916)

Gamut: sRGB and Display P3

#0069A8 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.128 and Display P3 reaches 0.166; this color uses 100% of the sRGB chroma available.

CSS snippets

.element {
  color: #0069a8;
  color: rgb(0 105 168);
  color: hsl(203 100% 33%);
  color: oklch(0.504 0.128 245.5);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.504 0.128 245.5);
}
/* arbitrary values */
class="text-[#0069a8] bg-[oklch(0.504_0.128_245.5)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.1721 0.4052 0.6396); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #0069a8 calc(l - 0.1) c h); }

Nearby colors

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

• v3 sky-700#0369A1
• cyan-700#007595
• v3 cyan-700#0E7490
• sky-800#00598A
• v3 sky-800#075985
• cyan-800#005F78
• v3 cyan-800#155E75
• v3 sky-600#0284C7

Lighter and darker, same hue and chroma

• #227BBB · oklch(0.564 0.128 245.5) · ΔL +0.06
• #005795 · oklch(0.444 0.128 245.5) · ΔL −0.06

Open in the studio