Design tool
Color Converter
Convert HEX colors into RGB, RGBA, HSL, HSLA, and a CSS variable without leaving the page. Use the color picker, edit RGB or HSL channels, choose a preset swatch, then copy the color value you need for CSS, design handoff, branding, or UI work.
Preview
Color Swatch
Light text
#2563EB
rgb(37, 99, 235)
Formats
Copy Values
CSS ready
Overview
What Is a Color Converter?
A Color Converter turns a color code into other supported representations. The same sRGB color can be written as HEX, RGB, RGBA, HSL, or HSLA, but each format organizes the channel values differently. Designers, developers, students, and branding teams use these formats when writing CSS, sharing design tokens, or translating colors between tools.
This page is focused on web color workflows. It accepts 3-digit and 6-digit HEX colors, lets you adjust RGB and HSL channels, displays a live swatch, and provides copyable CSS-friendly values.
Formats
Supported Color Formats
HEX
Represents red, green, and blue channels with hexadecimal notation, such as #2563EB.
RGB
Represents red, green, and blue as numeric channels from 0 to 255.
RGBA
Uses the displayed RGB channels with alpha fixed at 1 in this implementation.
HSL
Represents hue, saturation, and lightness. Hue is shown from 0 to 360; saturation and lightness are percentages.
HSLA
Uses the displayed HSL channels with alpha fixed at 1 in this implementation.
CSS Variable
Outputs a simple custom property using the converted HEX value.
Method
How Color Conversion Works
Enter a valid HEX color, choose from the browser color picker, select a preset swatch, or use the random color button. The tool parses the HEX value into red, green, and blue channels, then derives HSL, RGBA, HSLA, and CSS variable output strings from those values.
You can also edit RGB or HSL fields directly. The converter updates the HEX input and all displayed outputs using the existing implementation's formulas, clamping, and rounding behavior.
Accuracy
Conversion Accuracy and Preview
Conversion results follow the current formulas and display precision used by this page. Rounded HSL channel values can produce small numerical differences compared with converters that keep more precision or use different serialization rules.
The swatch visually represents the current color and includes a text label with the HEX and RGB values so color is not the only cue. Preview appearance can still vary by browser, display calibration, and color-management environment.
Examples
Common Color Conversion Examples
Web development
Convert a HEX brand color into RGB or HSL before using it in CSS.
UI design
Adjust HSL lightness or saturation to explore related interface colors.
Branding
Copy a consistent CSS variable for design tokens or documentation.
CSS handoff
Share HEX, RGB, RGBA, HSL, or HSLA values with developers.
Quick checks
Use preset swatches or randomize to inspect CSS-ready color formats.
Workflow
How to Use the Color Converter
- Enter a 3-digit or 6-digit HEX color, pick a color, select a swatch, or randomize.
- Edit RGB or HSL number fields if you want to adjust the color channels.
- Review the live color preview and the converted output values.
- Choose a generated output row to copy that value to your clipboard.
- Paste the copied color into CSS, documentation, design notes, or another workflow.
Concepts
Understanding Color Formats
HEX and RGB describe red, green, and blue channels in the sRGB web color workflow. HEX is compact and common in CSS, while RGB makes each numeric channel explicit.
HSL describes hue, saturation, and lightness, which can be easier for people to reason about when adjusting a color. RGBA and HSLA include alpha syntax, but this tool outputs those values with alpha fixed at 1 rather than providing transparency controls.
Color Science
Color Spaces Explained
A color model describes channels such as red, green, blue, hue, saturation, or lightness. A color space gives those values a more specific interpretation. This converter works with common CSS-style sRGB-oriented formats, not print CMYK, perceptual Lab, LCH, OKLab, or OKLCH workflows.
The preview label uses a relative-luminance calculation to choose light or dark text over the swatch. That label is a usability aid, not a full WCAG contrast audit.
Advantages
Benefits
- Converts common web color formats without manual channel calculations.
- Provides a browser-based workflow with no installation required.
- Supports quick copying for CSS, documentation, and design handoff.
- Lets you compare HEX, RGB, RGBA, HSL, and HSLA values in one place.
- Includes a visual preview plus text values for accessible confirmation.
Boundaries
Limitations
- Only 3-digit and 6-digit HEX input is accepted.
- HSV, CMYK, Lab, LCH, OKLab, and OKLCH are not implemented on this page.
- RGBA and HSLA outputs use alpha fixed at 1.
- Rounding can create small differences from other conversion tools.
- Visual appearance can vary across displays and browsers.
Guidance
Tips for Best Results
- Use a valid 3-digit or 6-digit HEX value.
- Check RGB and HSL channel ranges before copying values.
- Preserve precision when exact design tokens matter.
- Review copied values before publishing production CSS.
- Use a dedicated accessibility checker when contrast compliance is required.
Avoid
Common Mistakes
- Entering unsupported HEX lengths such as 4-digit or 8-digit alpha HEX.
- Mixing up RGB channel order with HSL channel order.
- Assuming HSL saturation and lightness behave like HSV saturation and value.
- Treating the preview as calibrated color measurement.
- Assuming small rounding differences mean a conversion is incorrect.
Questions
FAQ
What is a Color Converter?
A Color Converter changes one supported color representation into other supported formats, such as HEX, RGB, and HSL.
What is HEX?
HEX is a hexadecimal notation commonly used in CSS to represent red, green, and blue channel values.
What is RGB?
RGB represents a color with red, green, and blue channel values. This tool displays RGB channels from 0 to 255.
What is HSL?
HSL represents color with hue, saturation, and lightness. Hue is an angle-like value, while saturation and lightness are percentages.
Can I convert HEX to RGB?
Yes. Enter a valid 3-digit or 6-digit HEX value and the tool displays the matching RGB value.
Can I convert RGB to HEX?
Yes. Edit the red, green, or blue number fields and the tool updates the HEX value using the existing conversion rules.
Can I convert HEX to HSL?
Yes. Valid HEX input is converted to an HSL value with rounded hue, saturation, and lightness channels.
Can I convert HSL to HEX?
Yes. Edit the H, S, or L fields and the tool converts that HSL value back to HEX and RGB.
Does the tool support transparency?
The output includes RGBA and HSLA strings with alpha set to 1. The page does not provide an editable alpha input.
Does the tool support HSV or CMYK?
No. This implementation documents and converts only HEX, RGB, RGBA, HSL, HSLA, and a CSS variable output.
Can I use the converted colors in CSS?
Yes. The HEX, RGB, RGBA, HSL, HSLA, and CSS variable outputs are formatted for common CSS workflows.
Why are converted values sometimes slightly different?
Rounding and precision rules can affect displayed channel values, especially when converting through HSL.
Why does the converted color look different on another screen?
Screens, browsers, and color-management settings can display the same numerical color differently.
What is an alpha channel?
An alpha channel represents opacity or transparency. This page only outputs alpha values fixed at 1.
Is the Color Converter free?
Yes. This is a free browser-based color conversion tool.
Does the Color Converter work on mobile devices?
Yes. It uses standard browser inputs and buttons, so behavior depends on the mobile browser.
Is my color data uploaded to a server?
The conversion runs in your browser and does not intentionally upload entered color values.
More Tools
Related Tools
Terms
Glossary
Color
A visual value represented by channels such as red, green, blue, hue, saturation, or lightness.
Color Model
A way to describe color using a set of channels, such as RGB or HSL.
Color Space
A defined interpretation of color values within a model.
HEX
A compact hexadecimal notation for RGB channel values.
RGB
A model using red, green, and blue channels.
RGBA
RGB notation with an alpha component for opacity; alpha is fixed at 1 on this page.
HSL
A model using hue, saturation, and lightness.
HSLA
HSL notation with an alpha component for opacity; alpha is fixed at 1 on this page.
Hue
The base color angle used by HSL.
Saturation
How vivid or gray a color is in HSL.
Lightness
How dark or light a color is in HSL.
Channel
One numeric component of a color value.
Alpha Channel
A value that represents opacity or transparency.
Gamut
The range of colors a system can represent or display.
Color Code
A text representation of a color, such as #2563EB or rgb(37, 99, 235).
CSS Color
A color value written in syntax that CSS can understand.
Sources
References
Transparency & Verification
Educational Disclaimer
This Color Converter converts values according to its implemented formulas, parsing rules, rounding, and supported formats. Results are intended for general web development, design, educational, and color-formatting use. Different tools may produce slightly different numbers, and screen appearance can vary across displays, browsers, and color-managed environments. This page is not a calibrated color-management or professional color-measurement system.
Calculations and transformations execute locally on your machine with full offline support. Always verify critical results.
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