How to Convert HEX to RGB for CSS (With Examples)

HEX vs RGB in everyday CSS

HEX (#RRGGBB) is compact and ideal for design tokens. RGB (rgb(r, g, b)) exposes each channel, which makes opacity (rgba) and programmatic mixing easier.

Modern CSS supports both. Pick HEX for static brand colors and RGB/HSL when you need transparency or palette math.

#2563EB → rgb(37, 99, 235)
#FFFFFF → rgb(255, 255, 255)
#000000 → rgb(0, 0, 0)

How HEX to RGB conversion works

Each HEX pair is base-16. RR, GG, and BB become integers from 0 to 255. For #2563EB: 25 → 37, 63 → 99, EB → 235.

Because the mapping is deterministic, converting HEX → RGB → HEX returns the original code for standard 6-digit colors.

Convert HEX to RGB in your browser

Use the free Color Converter to paste a HEX value and copy the RGB output instantly. Everything runs locally — colors never leave your device.

Open the HEX to RGB converter.
Paste a HEX code such as #2563EB (with or without #).
Copy the rgb(r, g, b) result into your CSS or design tool.

Common mistakes to avoid

3-digit shorthand (#F00) must be expanded to #FF0000 before conversion. Also watch for missing # prefixes in some design exports.

Key takeaways

HEX and RGB are interchangeable notations for the same screen color.
Use HEX for tokens; use RGB/RGBA when you need alpha or channel math.
Convert privately in-browser with the HEX to RGB tool.

Try the related tool

Put this guide into practice with a free, private browser tool — no signup.

HEX to RGB Converter

Frequently Asked Questions

Is HEX the same as RGB?

They represent the same sRGB color, just with different notation. HEX is base-16 shorthand for the three RGB channels.

Should I store brand colors as HEX or RGB?

HEX is usually best for tokens and documentation. Convert to RGB/RGBA only when a feature needs channel access or opacity.

Can I convert HEX to RGB without uploading data?

Yes. The EazyTools4u color converter runs entirely in your browser.