Common use cases
- CSS implementation
- Translate design colors into the format used by your stylesheet.
- Design QA
- Check whether values match across tools.
- Prototyping
- Preview color changes before applying them.
Utilities · free tool
HEX, RGB and HSL color converter for CSS and UI design
Convert colors between HEX, RGB and HSL with a visual preview.
Your tool
Color Converter
Use it well
How to use Color Converter
Steps
- Enter a HEX, RGB or HSL value.
- Use the visual color picker if needed.
- Review converted formats.
- Copy the format you need.
Limits and good practices
Good practices
- Use realistic test values when validating forms, exports or API payloads.
- Keep real customer, banking and production secrets out of public tools.
- Check the output format before copying it into a production workflow.
- Document whether a value is generated, validated, converted or only estimated.
Common mistakes
- Confusing valid format with real-world validity
- A generated or locally validated value can match a format without proving that it exists in an official system.
- Using real production data
- Public utilities are best for test data, demos, fixtures, QA and quick checks, not for confidential values.
FAQ
Frequently asked questions
What is the difference between HEX and RGB?
HEX is a compact hexadecimal notation, while RGB expresses red, green and blue channels as numbers.
What is HSL useful for?
HSL separates hue, saturation and lightness, which can be easier for adjusting color variants.
Can this check accessibility contrast?
This tool converts colors; use a dedicated contrast checker before making accessibility decisions.
Are my inputs sent to a server?
OnSubmit tools run in the browser whenever the task can be processed locally. Avoid pasting production secrets, real banking details or personal data into public tools.