Color Converter

Color Formats Explained

Colors can be represented in several different formats, each with its own advantages. Understanding these formats helps you work effectively across web design, graphic design, and development contexts.

HEX (Hexadecimal)

The most common format used in web design. HEX codes start with # followed by six hexadecimal digits representing the red, green, and blue components. For example, #FF0000 is pure red. The format is #RRGGBB, where each pair ranges from 00 (no intensity) to FF (full intensity). A shorthand three-digit form (#RGB) works when each pair has matching digits.

RGB (Red, Green, Blue)

RGB represents colors as comma-separated values from 0 to 255 for each channel. The CSS function syntax is rgb(red, green, blue). RGB is the native color model for computer displays, where each pixel is a combination of red, green, and blue light at varying intensities. RGBA adds an alpha channel for opacity (0 = transparent, 1 = opaque).

HSL (Hue, Saturation, Lightness)

HSL is a more intuitive format for humans to work with. Hue is a degree on a color wheel (0-360): 0 is red, 120 is green, 240 is blue. Saturation (0-100%) controls the intensity of the color. Lightness (0-100%) controls how light or dark the color is. HSL makes it easy to create color schemes by adjusting hue while keeping saturation and lightness consistent.

When to Use Each Format

• HEX is best for specifying exact colors in CSS and HTML — it is the most compact format.
• RGB is useful when working with opacity (RGBA) or programmatically generating colors in code.
• HSL is ideal for creating color palettes, gradients, and themes because changing the hue produces predictably related colors.