Are files uploaded to a server?
No. Your input is handled locally in the browser. Some tools load JavaScript libraries from public CDNs, but NowConverter has no file-upload endpoint.
HEX, RGB and HSL converter
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About this tool
HEX, RGB and HSL converter without uploading
Enter a HEX value or use the colour picker to display matching RGB and HSL values. Choose a second colour and angle for a CSS gradient or PNG graphic.
Before you start
HEX, RGB and HSL are different descriptions of colour. Exported PNGs depend on your display’s colour handling.
Do I need an account or a paid plan?
No. The current version is free, has no registration and runs on devices with a compatible modern browser.
Can I download the colour gradient as an image?
Yes. Pick two colours and an angle to create a CSS linear gradient, copy the CSS or export the gradient as a PNG.
HEX, RGB and HSL are different ways to describe colour values
HEX and RGB represent red, green and blue channel values directly, while HSL describes a colour by hue, saturation and lightness. Converting between them is useful when moving between design tools, CSS and documentation, but the notation does not by itself guarantee identical appearance on every display.
Actual colour appearance also depends on the display, browser, colour profile and surrounding colours. When accessibility matters, evaluate text/background contrast rather than relying only on whether two colours look distinct on your own screen.
Practical checks
- Use the format expected by the destination CSS or design tool.
- Check contrast for text and essential interface controls.
- Treat on-screen colour as display-dependent rather than an exact physical reference.
Practical walkthrough · color tools
Prepare two brand colors for CSS
Example task: A design mockup uses #2563EB and #0F172A, and you need consistent RGB values plus a gradient.
Try this workflow
- Enter each HEX color and compare the displayed RGB/HSL representations.
- Choose an angle for the gradient and copy the resulting CSS.
- Paste the CSS into the target page and check contrast behind real text.
What to expect
For #2563EB the RGB channels are 37, 99 and 235. A gradient uses the chosen endpoints and angle.
When to take extra care
The same numeric color may appear different on displays with different profiles. Matching a corporate print color requires more than HEX values.