HEX to OKLCH: #CEFAFE

Also known as: Tailwind cyan-100

#CEFAFE → oklch(0.956 0.045 203.2)

Values are shown at full precision, so converting back gives exactly #cefafe. 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. sRGB → linear

R: 206/255 = 0.80784 → 0.617207  (((x + 0.055) / 1.055)^2.4)
G: 250/255 = 0.98039 → 0.955973  (((x + 0.055) / 1.055)^2.4)
B: 254/255 = 0.99608 → 0.991102  (((x + 0.055) / 1.055)^2.4)

2. linear sRGB → LMS

l = 0.4122·R + 0.5363·G + 0.0514·B = 0.818134
m = 0.2119·R + 0.6807·G + 0.1074·B = 0.887960
s = 0.0883·R + 0.2817·G + 0.6300·B = 0.948190

3. cube root

l′ = ∛0.818134 = 0.935280
m′ = ∛0.887960 = 0.961165
s′ = ∛0.948190 = 0.982423

4. LMS′ → Oklab

L = 0.2105·l′ + 0.7936·m′ − 0.0041·s′ = 0.95563
a = 1.9780·l′ − 2.4286·m′ + 0.4506·s′ = -0.04162
b = 0.0259·l′ + 0.7828·m′ − 0.8087·s′ = -0.01786

5. Oklab → OKLCH

C = √(a² + b²) = 0.04529
H = atan2(b, a) = 203.226°
L = 0.95563

6. OKLCH

oklch(0.95563 0.04529 203.226)
rounded: oklch(0.956 0.045 203.2)

All formats

HEX: #cefafe
RGB: rgb(206 250 254)
RGB (legacy): rgb(206, 250, 254)
HSL: hsl(185.00 96.00% 90.20%) → hsl(185 96% 90%)
HWB: hwb(185 81% 0%)
OKLCH: oklch(0.956 0.045 203.2) · oklch(95.6% 0.045 203.2)
OKLab: oklab(0.956 -0.042 -0.018)
Lab (D50): lab(95.28 -13.94 -6.85)
LCH (D50): lch(95.28 15.53 206.16)
Display P3: color(display-p3 0.8419 0.9753 0.9921)
Linear sRGB: color(srgb-linear 0.6172 0.9560 0.9911)

Gamut: sRGB and Display P3

#CEFAFE is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.049 and Display P3 reaches 0.052; this color uses 93% of the sRGB chroma available.

CSS snippets

.element {
  color: #cefafe;
  color: rgb(206 250 254);
  color: hsl(185 96% 90%);
  color: oklch(0.956 0.045 203.2);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.956 0.045 203.2);
}
/* arbitrary values */
class="text-[#cefafe] bg-[oklch(0.956_0.045_203.2)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.8419 0.9753 0.9921); }
}

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

#DDFFFF · oklch(1.000 0.045 203.2) · ΔL +0.06
#BBE6EA · oklch(0.896 0.045 203.2) · ΔL −0.06

Open in the studio

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Guides: What is OKLCH?