Color Code Converter: HEX, RGB, and HSL Made Simple
2026-05-24
Quick Answer
Quick Answer: Web colors use HEX (#FF5733), RGB (rgb(255,87,51)), or HSL (hsl(9,100%,60%)). Our Color Converter syncs all three formats with a live swatch preview.
Format cheat sheet
| Format | Example | Best for |
|---|---|---|
| HEX | #3498db | CSS, design tools |
| RGB | rgb(52, 152, 219) | Graphics APIs, Canvas |
| HSL | hsl(204, 70%, 53%) | Adjusting lightness/saturation intuitively |
Short HEX
Three-digit HEX like #f00 expands to #ff0000. Our tool accepts both.
HSL intuition
- Hue (0–360°) — color wheel position (red → green → blue)
- Saturation (0–100%) — gray vs vivid
- Lightness (0–100%) — black → color → white
Designers often tweak L and S while keeping H fixed for accessible variants.
Try It Yourself
Pick or paste a color in the Color Converter. Building QR codes? See QR Code Generator.
Frequently Asked Questions
Which format should CSS use?
All work in modern browsers. HEX is most common; HSL is great for theme variations.
Alpha / transparency?
This MVP focuses on opaque colors. RGBA/HSLA support may come in a future update.
Color picker not working?
Some browsers require HTTPS for eyedropper APIs; typing HEX manually always works.