HEX to RGB: #ADD8E6

Also known as: CSS lightblue

#ADD8E6 → rgb(173 216 230)

Values are shown at full precision, so converting back gives exactly #add8e6. 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. HEX → pairs
```
#ADD8E6 → AD | D8 | E6
```

2. base 16 → base 10

R = AD₁₆ = 10×16 + 13 = 173
G = D8₁₆ = 13×16 + 8 = 216
B = E6₁₆ = 14×16 + 6 = 230

3. RGB
```
rgb(173 216 230)
```

All formats

HEX: #add8e6
RGB: rgb(173 216 230)
RGB (legacy): rgb(173, 216, 230)
HSL: hsl(194.74 53.27% 79.02%) → hsl(195 53% 79%)
HWB: hwb(195 68% 10%)
OKLCH: oklch(0.856 0.049 219.7) · oklch(85.6% 0.049 219.7)
OKLab: oklab(0.856 -0.038 -0.031)
Lab (D50): lab(83.61 -12.23 -11.78)
LCH (D50): lch(83.61 16.98 223.94)
Display P3: color(display-p3 0.7122 0.8422 0.8949)
Linear sRGB: color(srgb-linear 0.4179 0.6867 0.7913)

Gamut: sRGB and Display P3

#ADD8E6 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.105 and Display P3 reaches 0.114; this color uses 47% of the sRGB chroma available.

CSS snippets

.element {
  color: #add8e6;
  color: rgb(173 216 230);
  color: hsl(195 53% 79%);
  color: oklch(0.856 0.049 219.7);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.856 0.049 219.7);
}
/* arbitrary values */
class="text-[#add8e6] bg-[oklch(0.856_0.049_219.7)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.7122 0.8422 0.8949); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #add8e6 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

#C0ECFA · oklch(0.916 0.049 219.7) · ΔL +0.06
#9AC5D2 · oklch(0.796 0.049 219.7) · ΔL −0.06

Open in the studio

Open in the OKLCH picker Check contrast on white

Other converters for this color

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Guides: What is OKLCH?