HSV to RGB Converter — Free Online Tool

Convert HSV to RGB instantly — adjust hue, saturation, and value with live sliders and get exact RGB and hex values, no signup required.

How It Works

The HSV to RGB conversion is a two-step process: the formula first calculates a “chroma” value from saturation and value, then maps that chroma onto the correct RGB channels based on which 60° segment the hue falls into.

Step 1 — Calculate chroma, then intermediate values:

• C (Chroma) = V × S
• X (second largest component) = C × (1 − |(H / 60° mod 2) − 1|)
• m (offset added to every channel) = V − C

Step 2 — Assign R′, G′, B′ based on the hue segment:

Hue range	R′	G′	B′
0°–60°	C	X	0
60°–120°	X	C	0
120°–180°	0	C	X
180°–240°	0	X	C
240°–300°	X	0	C
300°–360°	C	0	X

Step 3 — Final RGB (0–255 scale): R = (R′ + m) × 255, G = (G′ + m) × 255, B = (B′ + m) × 255

This tool runs the exact formula above in real time as the sliders move — the “Live formula values” panel shows the intermediate Cmax, Cmin, and Delta numbers for anyone implementing the conversion in code.

HSV vs RGB

HSV and RGB describe the same colors using two different mental models, which is why the same red can be written as hsv(0, 100%, 100%) or rgb(255, 0, 0) and mean identically the same thing on screen.

RGB (Red, Green, Blue) is additive-light based — it defines a color by how much red, green, and blue light combine to produce it. It maps directly to how screens render pixels, which is why RGB (and hex, its shorthand) is the format used in CSS, image files, and most code.

HSV (Hue, Saturation, Value) — sometimes called HSB (Hue, Saturation, Brightness) — is human-perception based. Hue is the color itself on a 360° wheel, saturation is how intense or washed-out it is, and value is how bright or dark it is. This is the model most color pickers in design software (Photoshop, Figma, Sketch) use, because it’s far more intuitive to drag “make it brighter” or “make it more vivid” than to guess three RGB numbers.

In short: designers think in HSV because it matches how humans perceive color adjustments; browsers, code, and image formats render in RGB. This converter exists to bridge that exact gap.

When to Use This

• Matching a color picked in design software to CSS/code — Photoshop, Figma, and most OS color pickers display HSV/HSB values; paste them here to get the RGB or hex your CSS actually needs.
• Implementing the conversion in your own code — the “How It Works” formula and live Cmax/Cmin/Delta values double as a working reference for JavaScript, Python, or any language’s color conversion function.
• Building color palettes or theme systems — adjusting Value and Saturation while holding Hue constant is the fastest way to generate consistent color shades and tints, then export them as RGB/hex for a WordPress theme’s color palette or a CSS custom-property system.

FAQ

Is HSV the same as HSB?
Yes — HSV and HSB (Hue, Saturation, Brightness) are the same color model with two different names for the third value; “Value” and “Brightness” refer to the identical brightness component, so any HSV-to-RGB formula also converts HSB to RGB.

What’s the difference between HSV and HSL?
HSV and HSL both use Hue and Saturation but differ in their third component — HSV’s “Value” measures brightness relative to pure white light, while HSL’s “Lightness” measures a color’s position between black and white, which is why the same hue and saturation can produce visibly different colors between the two models.

Why do design tools use HSV instead of RGB?
Design tools use HSV because adjusting one intuitive property — hue, intensity, or brightness — independently of the others matches how people naturally think about color, whereas adjusting RGB requires recalculating all three channels to achieve the same visual change.

Can HSV represent every color RGB can?
Yes — HSV and RGB are mathematically equivalent color spaces covering the same color gamut, so every RGB color has an exact, lossless HSV equivalent and vice versa; the conversion never loses precision beyond standard rounding to integer RGB values.

What does Value mean in HSV if it’s not the same as HSL’s Lightness?
Value represents how far a color is from black by scaling brightness down to zero at V=0, regardless of saturation, so a fully saturated color at maximum Value is as bright as white — unlike HSL, where a fully saturated color only reaches maximum lightness partway between black and white.