HEX to OKLCH: #67E8F9

Result

Values are shown at full precision, so converting back gives exactly #67e8f9. 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: 103/255 = 0.40392 → 0.135633  (((x + 0.055) / 1.055)^2.4)
   G: 232/255 = 0.90980 → 0.806952  (((x + 0.055) / 1.055)^2.4)
   B: 249/255 = 0.97647 → 0.947307  (((x + 0.055) / 1.055)^2.4)

2. 2. linear sRGB → LMS

   l = 0.4122·R + 0.5363·G + 0.0514·B = 0.537441
   m = 0.2119·R + 0.6807·G + 0.1074·B = 0.679771
   s = 0.0883·R + 0.2817·G + 0.6300·B = 0.836093

3. 3. cube root

   l′ = ∛0.537441 = 0.813037
   m′ = ∛0.679771 = 0.879267
   s′ = ∛0.836093 = 0.942074

4. 4. LMS′ → Oklab

   L = 0.2105·l′ + 0.7936·m′ − 0.0041·s′ = 0.86507
   a = 1.9780·l′ − 2.4286·m′ + 0.4506·s′ = -0.10270
   b = 0.0259·l′ + 0.7828·m′ − 0.8087·s′ = -0.05251

5. 5. Oklab → OKLCH

   C = √(a² + b²) = 0.11535
   H = atan2(b, a) = 207.078°
   L = 0.86507

6. 6. OKLCH

   oklch(0.86507 0.11535 207.078)
   rounded: oklch(0.865 0.115 207.1)

All formats

HEX

#67e8f9

RGB

rgb(103 232 249)

RGB (legacy)

rgb(103, 232, 249)

HSL

hsl(186.99 92.41% 69.02%) → hsl(187 92% 69%)

HWB

hwb(187 40% 2%)

OKLCH

oklch(0.865 0.115 207.1) · oklch(86.5% 0.115 207.1)

OKLab

oklab(0.865 -0.103 -0.053)

Lab (D50)

lab(85.31 -33.51 -19.65)

LCH (D50)

lch(85.31 38.85 210.38)

Display P3

color(display-p3 0.5418 0.8986 0.9655)

Linear sRGB

color(srgb-linear 0.1356 0.8070 0.9473)

Gamut: sRGB and Display P3

#67E8F9 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.134 and Display P3 reaches 0.144; this color uses 86% of the sRGB chroma available.

CSS snippets

.element {
  color: #67e8f9;
  color: rgb(103 232 249);
  color: hsl(187 92% 69%);
  color: oklch(0.865 0.115 207.1);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.865 0.115 207.1);
}
/* arbitrary values */
class="text-[#67e8f9] bg-[oklch(0.865_0.115_207.1)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.5418 0.8986 0.9655); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #67e8f9 calc(l - 0.1) c h); }

Nearby colors

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

• cyan-300#53EAFD
• v3 teal-300#5EEAD4
• sky-300#74D4FF
• v3 sky-300#7DD3FC
• teal-300#46ECD5
• aqua#00FFFF
• cyan-200#A2F4FD
• v3 cyan-200#A5F3FC

Lighter and darker, same hue and chroma

• #7DFCFF · oklch(0.925 0.115 207.1) · ΔL +0.06
• #50D4E5 · oklch(0.805 0.115 207.1) · ΔL −0.06

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