Color converters
HEX to CSS Variable
Turn a HEX color into a ready-to-use CSS custom property. Nothing you enter leaves your browser.
Your result will appear here.
What this tool does
About the HEX to CSS Variable
This converter reads hex input and rewrites the same usable information as css variable. It changes the representation, not the meaning of the source data, except where the target format cannot express the same structure.
It helps translate a color between design and development notations while keeping the underlying appearance as close as the target model allows.
How to use it
- Enter HEX color (optional name after comma) in the input pane. Use the example button if you want to see the expected syntax.
- Review the input for the structure shown in the example. Then select “Create CSS variable.”
- Inspect the result for warnings or structural differences, then copy it into the destination system.
Practical example
Start with a known input
Try this sample input: #3465F5, primary-color Select “Create CSS variable” and compare the result with the source before using it elsewhere.
What to know about the result
- Hexadecimal represents values with digits 0–9 and letters A–F. Converting the representation does not encrypt or compress the underlying data.
- Processing happens in this browser. Your entered text and selected files are not sent to FormatCalc for conversion.
Common questions
Using the HEX to CSS Variable
Is the HEX to CSS Variable free to use?
Yes. FormatCalc's HEX to CSS Variable is free to use with no account required.
Is my data private when I use the HEX to CSS Variable?
Yes. This tool processes your input locally in your browser. FormatCalc does not upload or store what you enter.
How do I use the HEX to CSS Variable?
Paste or type your input, select any available options, and choose Create CSS variable. You can then copy the result.
What should I check before using the result?
Hexadecimal represents values with digits 0–9 and letters A–F. Converting the representation does not encrypt or compress the underlying data. Processing happens in this browser. Your entered text and selected files are not sent to FormatCalc for conversion.