Numarly

Color Converter

Convert colors between HEX, RGB, and HSL, with a live preview.

RGB

HSL

HEX

#3b82f6

RGB

rgb(59, 130, 246)

HSL

hsl(217, 91%, 60%)

What Is the Color Converter?

This tool converts a color between its three most common web formats — HEX, RGB, and HSL — and shows a live preview, keeping all three representations in sync as you edit any of them.

How Is the Color Converter Calculated?

HEX and RGB both describe a color as red, green, and blue intensities from 0-255 — HEX just writes each value in base-16. HSL instead describes hue (position on a 360° color wheel), saturation (color intensity), and lightness (how close to black or white), which is converted to and from RGB using standard color space formulas.

Color Converter Example

The color #3B82F6 is the same as rgb(59, 130, 246) and hsl(217, 91%, 60%) — a medium blue.

How to Use the Color Converter

Step 1

Edit the HEX field, RGB sliders, HSL fields, or the color picker swatch.

Step 2

All formats update automatically to stay in sync.

Step 3

Click Copy next to HEX, RGB, or HSL to copy that value to your clipboard.

Benefits

  • Keeps HEX, RGB, and HSL in sync automatically, so you never have to convert by hand.
  • Shows a live color preview so you can see the result before copying it into your design.
  • Supports both 6-digit and 3-digit shorthand HEX codes.

Common Color Converter Scenarios

Scenario 1

Converting a design tool's HEX color into RGB or HSL for CSS.

Scenario 2

Fine-tuning a color's lightness or saturation using HSL sliders rather than guessing RGB values.

Scenario 3

Matching a brand color across different software that expects different formats.

Understanding Your Result

In HSL, adjusting lightness moves a color toward black (0%) or white (100%) while keeping its hue, which is often more intuitive than adjusting RGB values individually to lighten or darken a color.

Tips

  • Use HSL when you want to create lighter or darker variants of the same color for hover states or shades.
  • 3-digit HEX shorthand (like #3BF) expands to a 6-digit code by doubling each digit.
  • RGB and HEX represent identical color precision — neither is more accurate than the other.

Common Mistakes

  • Assuming HSL lightness of 50% always means a 'medium' looking color — very saturated hues can still look bright at 50% lightness.
  • Manually converting HEX to RGB by hand and rounding incorrectly.
  • Typing an invalid HEX code (wrong length or non-hex characters) and expecting it to still parse.

Frequently Asked Questions

Does this tool store or send my colors anywhere?

No, all color conversion happens locally in your browser and nothing is sent to a server.

Is HSL more accurate than RGB or HEX?

No, all three represent the same color space — HSL is just a different, often more intuitive way to describe the same color for adjusting lightness or saturation.

Can I enter a 3-character HEX code?

Yes, shorthand codes like #3BF are automatically expanded to their full 6-digit equivalent.

Why do my RGB and HSL values sometimes round slightly differently after conversion?

HSL to RGB conversion involves rounding fractional values to whole numbers, so converting back and forth repeatedly can shift a color by a tiny, usually imperceptible amount.

What's the difference between HEX, RGB, and HSL?

HEX and RGB both directly specify red, green, and blue intensity in different notations, while HSL describes color using hue, saturation, and lightness — a format some designers find more intuitive for adjusting a color's brightness or vividness.

Can I convert a named color like 'red' or 'skyblue'?

Check whether the tool accepts CSS color names as input — if not, look up the color's HEX equivalent first and enter that instead.

Does this tool support alpha (transparency) values?

Check whether it supports an 8-character HEX (with alpha) or RGBA/HSLA format — if not, this tool is likely designed for fully opaque colors only.

Why would a designer prefer HSL over RGB?

HSL makes it intuitive to create variations of the same color — like a lighter or darker shade — by adjusting just the lightness value, without needing to recalculate all three RGB channels.

Is there a difference between web colors and print colors?

Yes — web colors (HEX, RGB, HSL) are designed for screens using light-based color mixing, while print uses a different color model (CMYK) based on ink, so colors can look different between screen and print.

Important Information

Colors are converted locally in your browser and are never sent to or stored on a server.

Last updated: July 27, 2026