HSLHSV

HSLHSV is not a standard, widely recognized color space. In color science, HSL and HSV are two distinct cylindrical representations of the RGB cube, and HSLHSV is sometimes used informally to refer to a discussion or a dual-mode tool that exposes both models rather than a single formal space. Software and color pickers often offer separate HSL and HSV modes for users to choose what suits their task.

HSL stands for Hue, Saturation, and Lightness. Hue denotes the color type (0–360 degrees); Saturation indicates color intensity (0–1); Lightness represents the brightness level (0–1). Given normalized RGB values, a conversion to HSL involves determining the maximum and minimum RGB components, computing lightness as the average of max and min, and deriving saturation and hue from the chroma (the difference between max and min) with specific conditional formulas. HSL is commonly perceived as intuitive for adjusting how light or dark a color appears without drastically changing its hue.

HSV stands for Hue, Saturation, and Value (brightness). Hue again specifies color type; Saturation expresses color purity; Value describes the maximum brightness component of the color. In HSV, Value is the maximum of the RGB components, and Saturation is the ratio of chroma to Value (with special handling when Value is zero). Hue calculation uses which RGB component is the maximum, similar in method to HSL but yielding different saturation and lightness behavior.

Differences between HSL and HSV affect practical use: HSL often preserves perceived lightness during edits, while HSV emphasizes consistent brightness. Both are widely used in digital tools, graphics workflows, and web design, typically via separate HSL and HSV controls rather than a single unified space.