HSV to RGB Converter

HSV to RGB converter

Enter hue, saturation and value and get the equivalent RGB value instantly, with a live colour swatch and a copy button. HSV (also called HSB) is the model behind most colour pickers, so this tool turns those picker numbers back into the rgb() values you need for CSS and design software.

How it works

The converter normalises the hue with a wrap so any angle maps onto 0–360, and clamps saturation and value to 0–100%. It divides the hue by 60 to find which of the six segments of the colour wheel it falls in, then computes a chroma C = V × S (the colourfulness), an intermediate X for the mixing edge, and a match value m = V − C that raises every channel to the correct brightness. The right pair of C, X and 0 is assigned to red, green and blue for that segment, m is added, and each channel is multiplied by 255 and rounded to a 0–255 integer.

Example

For hsv(217, 76%, 96%):

• Hue 217° is in the blue region, S = 0.76, V = 0.96
• C = 0.96 × 0.76 ≈ 0.730, m = 0.96 − 0.730 ≈ 0.230
• Result: roughly rgb(59, 130, 246) = #3b82f6

All in your browser, nothing uploaded.