Color Converter
Convert colors between HEX, RGB, RGBA, HSL and HSLA. Preview colors, copy CSS-ready values and build color variables locally in your browser.
Convert color
Enter HEX, RGB, RGBA, HSL or HSLA, or choose a color from the picker.
Suggested text: light text. Check final contrast in your design.
Quick color conversion examples
What is a color converter?
A color converter changes one color format into another. Designers and developers often move between design tools, CSS files, component libraries and brand guidelines, and each workflow may prefer a different format. This tool converts common web color formats and shows a live preview so you can quickly check whether the value looks right.
HEX vs RGB vs HSL
HEX is a compact hexadecimal way to write red, green and blue channels. RGB uses numeric red, green and blue values from 0 to 255. HSL uses hue, saturation and lightness, which can be easier when adjusting a color family, making a shade lighter or reducing saturation.
When to use HEX
HEX values are common in CSS, design tools and brand systems. They are short, easy to copy and widely recognized. Use HEX when you need a simple solid color value such as #2563eb.
When to use RGB and RGBA
RGB is helpful when a tool or API expects channel values. RGBA adds alpha, which controls transparency. An alpha value of 1 is fully opaque, while 0 is fully transparent. Values such as rgba(37, 99, 235, 0.8) are useful for overlays and soft UI effects.
When to use HSL and HSLA
HSL is useful when you want to reason about color changes. Hue controls the color angle, saturation controls intensity and lightness controls brightness. HSLA adds transparency to the same model.
Color preview and CSS workflows
Previewing a color while converting reduces copy-paste mistakes. The CSS variable output is useful when building themes, design tokens and component styles. Always check final contrast in the context of your actual design, text size and background.
Common color conversion mistakes
Forgetting the # in HEX when required by CSS
CSS HEX colors normally include #. This tool accepts values with or without it, but the output includes the CSS-ready version.
Mixing RGB values above 255
RGB channels should be between 0 and 255. Larger values usually mean the input is in another format.
Confusing HSL percentages with RGB numbers
HSL saturation and lightness are percentages. RGB channels are numeric color channel values.
Ignoring alpha transparency
RGBA and HSLA include transparency. A color can look different when placed over another background.
Copying colors without checking contrast
A color value alone does not guarantee readable text. Check contrast in the final UI before shipping.
Assuming all design tools display colors identically
Display settings, color profiles and backgrounds can affect how a color appears. Use the code value as the source of truth for implementation.
Free online color converter
This color converter helps web developers, UI designers, CSS users, students, marketers and brand teams convert common web color formats. Enter HEX, RGB, RGBA, HSL or HSLA and get copy-friendly values for CSS and design systems. The conversion runs locally in your browser and does not upload color values.
Use it when translating brand colors into CSS, building design tokens, converting a color from a design file, checking a transparent RGBA value or creating a quick CSS variable. The tool accepts shorthand HEX, full HEX, comma-separated RGB values, rgb() and rgba() syntax, hsl() and hsla() syntax, plus a native color picker for quick selection.
Simple preview for practical workflows
The live swatch shows the converted color and a simple dark-text or light-text suggestion based on luminance. Treat that suggestion as a quick guide, not a full accessibility audit. Final contrast depends on actual text size, background, alpha and surrounding UI.
Color Converter FAQ
What is a HEX color?
A HEX color is a CSS color format that represents red, green and blue channels with hexadecimal values, such as #2563eb.
What is RGB?
RGB represents a color with red, green and blue channel values, usually from 0 to 255.
What is HSL?
HSL represents hue, saturation and lightness. It can be easier to adjust color families and brightness than RGB.
What is the difference between RGB and RGBA?
RGBA adds an alpha value to RGB. Alpha controls transparency from 0 to 1.
What is the difference between HSL and HSLA?
HSLA adds an alpha value to HSL so the color can include transparency.
Can I convert HEX to RGB?
Yes. Enter a 3-digit or 6-digit HEX value and the converter shows RGB, HSL and CSS formats.
Can I convert RGB to HEX?
Yes. Enter rgb(37, 99, 235) or 37, 99, 235 to convert RGB to HEX and HSL.
Can I use these values in CSS?
Yes. The generated HEX, RGB, RGBA, HSL, HSLA and CSS variable values are copy-friendly for CSS.
Is my color data sent to your servers?
No. Color conversion happens locally in your browser and color values are not uploaded.
Is this tool free?
Yes. The color converter is free to use and runs in your browser.