Tools / Color Converter / HSV → HSL

HSV to HSL Converter.

HSV to HSL keeps the hue but re-bases the other two axes: a color picker speaks HSV (saturation × value), while CSS and design tokens speak HSL (saturation × lightness). The hue is identical; only saturation and the light axis are recomputed.

HSL —
All formats

    The HSV → HSL formula

    L = V·(1 − S/2). S_hsl = 0 if L∈{0,1} else (V − L)/min(L, 1−L). Hue is unchanged.

    Worked example

    Convert hsv(220, 65%, 31%):

    1. V = 0.31, S = 0.65
    2. L = 0.31·(1 − 0.325) ≈ 0.21 → 21%
    3. S_hsl = (0.31 − 0.21)/min(0.21, 0.79) ≈ 0.49 → 49%
    4. Result: hsl(220, 49%, 21%)

    JavaScript

    function hsvToHsl(h,s,v){
      s/=100; v/=100;
      const l = v*(1 - s/2);
      const sl = (l===0||l===1) ? 0 : (v - l)/Math.min(l, 1-l);
      return [h, Math.round(sl*100), Math.round(l*100)];
    }

    FAQ

    Why does the same color have different S in HSV vs HSL?

    The two models measure saturation against different references (value vs lightness). A vivid mid-tone can read as 100% S in HSV but ~50% S in HSL — same color, different yardstick.

    Paid links below. As an Amazon Associate we earn from qualifying purchases.

    Library

    Colour references for your next project

    Compare the original references behind this archive. Check the contents, edition and format before choosing a book.

    Book links are Amazon Associates affiliate links. Your price is unchanged; a small commission supports the archive. As an Amazon Associate we earn from qualifying purchases.

    Torn between the two Wada dictionaries? Vol 1 vs Vol 2, compared plate by plate →

    Book links are Amazon Associates affiliate links. Your price is unchanged; a small commission supports the archive. As an Amazon Associate we earn from qualifying purchases.

    Looking for a combination we don’t have yet?

    Tell us the colour, mood, or palette you were after — it shapes which editorial combinations we add next.