HEX to HSL: #005F78

Result

Values are shown at full precision, so converting back gives exactly #005f78. 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. RGB ÷ 255

   R = 0.0000
   G = 0.3725
   B = 0.4706

2. 2. max, min, Δ

   max = 0.4706
   min = 0.0000
   Δ = max − min = 0.4706

3. 3. L

   L = (max + min) / 2 = 0.2353 = 23.53%

4. 4. S

   S = Δ / (1 − |2L − 1|) = 1.0000 = 100.00%

5. 5. H

   max is B → H = 60° × ((R − G) / Δ + 4) = 60° × ((0.0000 − 0.3725) / 0.4706 + 4) = 192.50°

6. 6. HSL

   hsl(192.50 100.00% 23.53%)

All formats

HEX

#005f78

RGB

rgb(0 95 120)

RGB (legacy)

rgb(0, 95, 120)

HSL

hsl(192.50 100.00% 23.53%) → hsl(193 100% 24%)

HWB

hwb(192 0% 53%)

OKLCH

oklch(0.451 0.085 223.8) · oklch(45.1% 0.085 223.8)

OKLab

oklab(0.451 -0.061 -0.059)

Lab (D50)

lab(36.64 -17.36 -21.33)

LCH (D50)

lch(36.64 27.51 230.86)

Display P3

color(display-p3 0.1531 0.3666 0.4605)

Linear sRGB

color(srgb-linear 0.0000 0.1144 0.1878)

Gamut: sRGB and Display P3

#005F78 is a hex color, so it sits inside sRGB and therefore inside Display P3. At this lightness and hue, sRGB reaches chroma 0.085 and Display P3 reaches 0.112; this color uses 100% of the sRGB chroma available.

CSS snippets

.element {
  color: #005f78;
  color: rgb(0 95 120);
  color: hsl(193 100% 24%);
  color: oklch(0.451 0.085 223.8);
}

/* Tailwind CSS v4 */
@theme {
  --color-brand: oklch(0.451 0.085 223.8);
}
/* arbitrary values */
class="text-[#005f78] bg-[oklch(0.451_0.085_223.8)]"

/* wide-gamut screens */
@media (color-gamut: p3) {
  .element { color: color(display-p3 0.1531 0.3666 0.4605); }
}

/* relative color syntax: 10% darker */
.element-dark { color: oklch(from #005f78 calc(l - 0.1) c h); }

Nearby colors

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

• v3 cyan-800#155E75
• v3 sky-800#075985
• sky-800#00598A
• teal-800#005F5A
• v3 teal-800#115E59
• slate-600#45556C
• cyan-900#104E64
• v3 cyan-900#164E63

Lighter and darker, same hue and chroma

• #20708A · oklch(0.511 0.085 223.8) · ΔL +0.06
• #004E66 · oklch(0.391 0.085 223.8) · ΔL −0.06

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