HEX to OKLCH: #00BFFF

Result

Values are shown at full precision, so converting back gives exactly #00bfff. 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: 191/255 = 0.74902 → 0.520996  (((x + 0.055) / 1.055)^2.4)
   B: 255/255 = 1.00000 → 1.000000  (((x + 0.055) / 1.055)^2.4)

2. 2. linear sRGB → LMS

   l = 0.4122·R + 0.5363·G + 0.0514·B = 0.330873
   m = 0.2119·R + 0.6807·G + 0.1074·B = 0.462038
   s = 0.0883·R + 0.2817·G + 0.6300·B = 0.776753

3. 3. cube root

   l′ = ∛0.330873 = 0.691651
   m′ = ∛0.462038 = 0.773083
   s′ = ∛0.776753 = 0.919237

4. 4. LMS′ → Oklab

   L = 0.2105·l′ + 0.7936·m′ − 0.0041·s′ = 0.75535
   a = 1.9780·l′ − 2.4286·m′ + 0.4506·s′ = -0.09522
   b = 0.0259·l′ + 0.7828·m′ − 0.8087·s′ = -0.12030

5. 5. Oklab → OKLCH

   C = √(a² + b²) = 0.15342
   H = atan2(b, a) = 231.639°
   L = 0.75535

6. 6. OKLCH

   oklch(0.75535 0.15342 231.639)
   rounded: oklch(0.755 0.153 231.6)

All formats

HEX

#00bfff

RGB

rgb(0 191 255)

RGB (legacy)

rgb(0, 191, 255)

HSL

hsl(195.06 100.00% 50.00%) → hsl(195 100% 50%)

HWB

hwb(195 0% 0%)

OKLCH

oklch(0.755 0.153 231.6) · oklch(75.5% 0.153 231.6)

OKLab

oklab(0.755 -0.095 -0.120)

Lab (D50)

lab(71.83 -24.07 -43.56)

LCH (D50)

lch(71.83 49.76 241.07)

Display P3

color(display-p3 0.3363 0.7378 0.9769)

Linear sRGB

color(srgb-linear 0.0000 0.5210 1.0000)

Gamut: sRGB and Display P3

#00BFFF is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.153 and Display P3 reaches 0.166; this color uses 100% of the sRGB chroma available.

CSS snippets

.element {
  color: #00bfff;
  color: rgb(0 191 255);
  color: hsl(195 100% 50%);
  color: oklch(0.755 0.153 231.6);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.755 0.153 231.6);
}
/* arbitrary values */
class="text-[#00bfff] bg-[oklch(0.755_0.153_231.6)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.3363 0.7378 0.9769); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #00bfff calc(l - 0.1) c h); }

Nearby colors

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

• sky-400#00BCFF
• v3 sky-400#38BDF8
• cyan-500#00B8DB
• v3 cyan-500#06B6D4
• cyan-400#00D3F2
• sky-500#00A6F4
• v3 cyan-400#22D3EE
• v3 sky-500#0EA5E9

Lighter and darker, same hue and chroma

• #35D3FF · oklch(0.815 0.153 231.6) · ΔL +0.06
• #00ACEB · oklch(0.695 0.153 231.6) · ΔL −0.06

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