HSV to CMYK Converter

Conversion procedure

1. Parse HSV: accept hsv(h, s%, v%) (sometimes called HSB in other apps) with the same numeric conventions as HSL: hue 0–360°, saturation and value 0–100%. Again, these values are inputs only; the engine converts them to RGB next.
2. Convert HSV → sRGB: S and V (value / brightness) are scaled to 0–1. Chroma C = V × S. As with HSL, hue selects which two of R,G,B carry the chroma and intermediate values; m = V − C is added to each channel before scaling to 0–255 with rounding and clamping.
3. Build CMYK: let r,g,b be 0–1. K = 1 − max(r,g,b). If K = 1, the result is (0,0,0,100). Otherwise C, M, Y are computed as (1 − r − K)/(1 − K) etc., multiplied by 100, and rounded to integer percentages for display: cmyk(c%, m%, y%, k%).
4. Finalize: the result string is what you copy from the calculator. The line under the fields summarizes the path in short form (CMYK ← sRGB ← HSV). Rounding is intentional so values read like typical CSS; tiny differences versus other apps can still appear because of integer hue, saturation, lightness/value, or ink percentages.
5. CMYK reminder: this model is a screen-side approximation. For print-critical work, follow your printer or PDF export profile; use HEX/RGB on this site as the authoritative on-screen reference. HSL/HSV reminder: when hue, saturation, and lightness/value are shown as whole numbers, more than one underlying RGB can produce the same text. Typing those integers back into a converter may therefore differ by ±1 from a color you first picked as HEX in the Color Picker—that is expected rounding behavior, not a broken formula.