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Convert HSL to HEX

Converting Hue, Saturation, Lightness (HSL) to hexadecimal (HEX) is a precise, rule-based operation — both formats describe the same color with different numbers. Whether you are tuning a CSS custom property, matching a brand color across design tools, or preparing values for print, this page gives you an interactive converter, the exact HSL → HEX method, a worked example, a quick-reference table and the details that matter (rounding, gamut and print caveats).

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How to convert HSL to HEX

Take this real example — the color firebrick(#c2410c):

hsl(17.47, 88.35%, 40.39%) → #c2410c

  1. Convert the HSL color to RGB using the HSL → RGB method.
  2. Keep the three RGB channels (0–255) — this is the shared numeric base of every on-screen format.
  3. Convert RGB to HEX with the RGB → HEX method to finish.

HSL → RGB → HEX (RGB is the numeric bridge)

HSL to HEX conversion table

HSL to HEX — quick reference
Common colors converted from HSL to HEX
ColorHSLHEX
Whitehsl(0, 0%, 100%)#ffffff
Blackhsl(0, 0%, 0%)#000000
Redhsl(0, 100%, 50%)#ff0000
Limehsl(120, 100%, 50%)#00ff00
Bluehsl(240, 100%, 50%)#0000ff
VersatilBox accenthsl(17.47, 88.35%, 40.39%)#c2410c
Tailwind blue-500hsl(217.22, 91.22%, 59.8%)#3b82f6
Tailwind emerald-500hsl(160.12, 84.08%, 39.41%)#10b981

About these formats

HSL (Hue, Saturation, Lightness). HSL is a cylindrical way of thinking about RGB that matches how humans adjust color: pick a hue angle, then dial saturation and lightness. Defined by CSS Color 4.

HEX (hexadecimal). HEX is the web's native notation: a # followed by two digits per channel in base 16 (00–FF). Compact, unambiguous and supported everywhere, from CSS to design tools.

Frequently asked questions

How do I convert HSL to HEX?

Convert the HSL color to RGB using the HSL → RGB method. Keep the three RGB channels (0–255) — this is the shared numeric base of every on-screen format. Convert RGB to HEX with the RGB → HEX method to finish. The converter above does it instantly, including the reverse direction.

What is HSL?

HSL — Hue, Saturation, Lightness — is a cylindrical way of thinking about RGB that matches how humans adjust color: pick a hue angle, then dial saturation and lightness. Defined by CSS Color 4.

What is HEX used for?

HEX (hexadecimal) is the web's native notation: a # followed by two digits per channel in base 16 (00–FF). Compact, unambiguous and supported everywhere, from CSS to design tools.

Is the HSL → HEX conversion exact?

Yes. The formulas are deterministic and both formats store the same information for on-screen color; values are rounded only for display.

Why does the HEX value look different in other tools?

Small differences come from rounding (how many decimals are kept) and from out-of-gamut handling. This site follows the CSS Color 4 algorithms and shows OKLCH with 3 decimals, the same convention used by browsers and mainstream design tools.