Hex Color to HSV Converter

Paste a 6-digit hex color and get its HSV equivalent, a hue in degrees plus saturation and value (brightness) percentages, the color model most color pickers and image editors use for their color wheel + slider interfaces. A free online tool from Staaarter, right in your browser.

Runs locallyUpdated 2026-07-26

Overview

Introduction

HSV describes a color as a hue, how saturated (vivid) it is, and how bright it is, the same three-dimensional idea as HSL but measuring the third component differently, and it's the model behind most color-wheel-and-slider picker UIs in image editors.

This tool decodes a hex color's RGB bytes and converts them to HSV using the standard formula, so you can see the hue, saturation, and value/brightness that a typical color picker would show for the same hex color.

What Is Hex Color to HSV Converter?

HSV (hue, saturation, value), also called HSB (hue, saturation, brightness), is a cylindrical color model where hue is a 0-360 degree angle, saturation is 0-100% distance from gray, and value is 0-100% brightness, defined as the largest of the normalized red/green/blue channels.

It shares its hue formula with HSL but differs in how saturation and the third channel are computed, giving each model a different, though related, geometric interpretation of the same RGB color space.

How Hex Color to HSV Converter Works

Value is simply the largest of the normalized (0-1) red, green, and blue channels: V = max(r', g', b').

Saturation is the spread between the largest and smallest channel relative to the largest: S = 0 if V is 0, otherwise (max - min) / max. Hue uses the same six-segment formula as HSL, based on which channel is largest and the relative difference between the other two.

When To Use Hex Color to HSV Converter

Use this when you want the hue/saturation/brightness breakdown of a hex color the way a typical color-wheel picker or image editor (like Photoshop's HSB fields) would show it.

It's also useful when working with any API or library that expects HSV/HSB input rather than hex or RGB.

Features

Advantages

  • Matches the hue/saturation/value fields shown by most color-picker UIs and image editing software.
  • Fully reversible with the companion HSV to Hex Color Converter tool, aside from ordinary rounding.
  • Simple, well-defined formula with no ambiguity about which channel drives 'value'.

Limitations

  • Only accepts 6-digit hex input; there's no alpha/transparency component in this conversion.
  • Hue, saturation, and value are each rounded to whole numbers, which can shift results by small amounts on a strict round trip.

Examples

Pure red

Input

#FF0000

Output

hsv(0, 100%, 100%)

Red is fully saturated and, since its one nonzero channel is already at maximum (255), value is 100%.

A warm coral color

Input

#FF5733

Output

hsv(11, 80%, 100%)

Red is the maximum channel (255, giving value 100%), while the spread down to the minimum channel (blue, 51) yields 80% saturation.

Best Practices & Notes

Best Practices

  • If you're replicating a specific image editor's color picker fields, confirm whether it labels this model HSV or HSB, they're identical, just named differently.
  • Don't mix up HSV's 'saturation' with HSL's, feeding one model's saturation value into the other's formula will produce a different, wrong color.

Developer Notes

Implements the standard max/min/delta-based HSV formula (value = max channel, saturation = delta/max, hue shared with the HSL formula); verified against known reference conversions for the primary colors, a mid-tone example, and grayscale edge cases.

Hex Color to HSV Converter Use Cases

  • Understanding what hue/saturation/brightness fields an image editor would show for a given hex color
  • Feeding a hex color into an HSV-based API, shader, or color-manipulation library
  • Comparing HSV output against HSL output to understand how the two models diverge for the same color

Common Mistakes

  • Assuming HSV and HSL saturation are the same number for a given color; they're computed with different formulas and usually differ.
  • Confusing 'value' (brightness of the most intense channel) with HSL's 'lightness' (average of the brightest and darkest channel); a fully saturated primary color has value 100% but lightness only 50%.

Tips

  • Use the HSV to Hex Color Converter tool to go the other direction, e.g. after picking hue/saturation/value in a picker UI.
  • If your workflow actually calls for HSL semantics (lightness-based adjustments), use the Hex Color to HSL Converter tool instead.

References

Frequently Asked Questions