Skip to main content
Particularly LogoParticular.ly

Color Converter

Color Preview
Convert colors between HEX, RGB, HSL, and other formats.
HEX
RGB
rgb(59, 130, 246)
HSL
hsl(217, 91%, 60%)

About the Color Converter

The Color Converter translates a single color between the formats designers and developers use most: HEX, RGB, and HSL. Each notation describes the same color through a different lens — HEX is the compact six-digit hexadecimal code common in CSS and design tools, RGB expresses color as red, green, and blue channels from 0 to 255, and HSL describes it as hue, saturation, and lightness, which maps more closely to how humans perceive color relationships.

Conversion works by treating RGB as the canonical representation: a HEX value like #3B82F6 is split into its red, green, and blue byte pairs, and HSL is derived through trigonometric mapping of those channels onto a color wheel. Because all three formats can describe the exact same pixel, the tool lets you enter any one and instantly see the other two, often with a live swatch so you can confirm the result visually before copying it into your stylesheet.

Front-end developers use this when a design hands them a HEX code but a CSS variable or animation needs RGB with an alpha channel, or when they want HSL so they can programmatically lighten and darken shades by adjusting only the lightness value. It is also useful for accessibility work, brand palette documentation, and converting colors pulled from screenshots or images into editable code.

A practical tip is to lean on HSL when building color systems: keeping hue and saturation fixed while stepping lightness gives you a consistent tint and shade ramp far more predictably than nudging raw RGB values. Remember that HEX shorthand like #FFF expands to #FFFFFF, and that rounding during HSL conversion can shift a value by one unit on a round trip, which is normal and visually imperceptible.

Frequently asked questions

What is the difference between RGB and HSL?
RGB defines color by mixing red, green, and blue light channels (0-255 each). HSL defines it by hue (the color's position on a 0-360 degree wheel), saturation (intensity), and lightness, which is more intuitive for adjusting shades.
How does a HEX code map to RGB?
A six-digit HEX code is three pairs of hexadecimal digits, one per channel. #FF8000 means red is FF (255), green is 80 (128), and blue is 00 (0).
Why do my values change slightly on a round trip?
Converting between formats involves rounding to whole numbers. A color taken from RGB to HSL and back can land one unit off, which is mathematically expected and not visible to the eye.
Can I add transparency with these formats?
Yes. HEX supports an 8-digit form with an alpha pair, and CSS supports rgba() and hsla() with an alpha value from 0 to 1. The core converter focuses on the opaque color, which you then wrap with the alpha you need.