HEX to HSL: #0284C7

Also known as: Tailwind v3 sky-600

#0284C7 → hsl(200 98% 39%)

Values are shown at full precision, so converting back gives exactly #0284c7. 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. RGB ÷ 255
```
R = 0.0078
G = 0.5176
B = 0.7804
```

2. max, min, Δ

max = 0.7804
min = 0.0078
Δ = max − min = 0.7725

3. L
```
L = (max + min) / 2 = 0.3941 = 39.41%
```

4. S

S = Δ / (1 − |2L − 1|) = 0.9801 = 98.01%

5. H

max is B → H = 60° × ((R − G) / Δ + 4) = 60° × ((0.0078 − 0.5176) / 0.7725 + 4) = 200.41°

6. HSL
```
hsl(200.41 98.01% 39.41%)
```

All formats

HEX: #0284c7
RGB: rgb(2 132 199)
RGB (legacy): rgb(2, 132, 199)
HSL: hsl(200.41 98.01% 39.41%) → hsl(200 98% 39%)
HWB: hwb(200 1% 22%)
OKLCH: oklch(0.588 0.139 242.0) · oklch(58.8% 0.139 242.0)
OKLab: oklab(0.588 -0.065 -0.123)
Lab (D50): lab(51.86 -11.66 -43.98)
LCH (D50): lch(51.86 45.50 255.15)
Display P3: color(display-p3 0.2251 0.5097 0.7591)
Linear sRGB: color(srgb-linear 0.0006 0.2307 0.5711)

Gamut: sRGB and Display P3

#0284C7 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.139 and Display P3 reaches 0.182; this color uses 100% of the sRGB chroma available.

CSS snippets

.element {
  color: #0284c7;
  color: rgb(2 132 199);
  color: hsl(200 98% 39%);
  color: oklch(0.588 0.139 242.0);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.588 0.139 242.0);
}
/* arbitrary values */
class="text-[#0284c7] bg-[oklch(0.588_0.139_242.0)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.2251 0.5097 0.7591); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #0284c7 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

#2997DB · oklch(0.648 0.139 242.0) · ΔL +0.06
#0072B3 · oklch(0.528 0.139 242.0) · ΔL −0.06

Open in the studio

Open in the OKLCH picker Check contrast on white

Other converters for this color

All converters →

Guides: What is OKLCH?