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CSS Color Generator

Generate CSS color values in all formats

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Color Input

CSS Formats

Description

The CSS Color Generator creates CSS color values in all standard formats. Enter a color and get HEX, RGB, RGBA, HSL, HSLA, and named color values ready to use in your stylesheets.

Key features

  • Convert colors to all CSS formats
  • Generate HEX, RGB, RGBA, HSL, HSLA
  • Support for alpha/transparency
  • Named color matching
  • One-click copy for each format
  • CSS custom property output

Common use cases

  • Converting between CSS color formats
  • Adding transparency to colors
  • Creating CSS variables
  • Finding named color equivalents
  • Quick format conversion for stylesheets

Privacy & security: All color operations happen locally in your browser. No data is sent anywhere.

How to Use

  1. Enter a color using the color picker or input a value.
  2. Adjust the alpha/transparency if needed.
  3. View all CSS format conversions.
  4. Click "Copy" next to any format to copy it.
  5. Use the CSS variable output for reusable styles.

Tips

  • Use HEX for simplicity and wide compatibility.
  • Use RGB/HSL when you need to manipulate colors programmatically.
  • Use RGBA/HSLA for transparency effects.
  • Named colors are limited to 147 predefined names.
  • CSS variables make it easy to update colors project-wide.

Troubleshooting

  • Named color shows "None" → The color doesn't have an exact named color equivalent.
  • Alpha not working → Make sure you're using RGBA or HSLA format, not solid HEX.
  • Color looks different → Check for typos in the input value.

Example

Example 1: Solid Color Conversion

Input:

Color: #3b82f6
Alpha: 1 (solid)

Output:

HEX: #3b82f6
RGB: rgb(59, 130, 246)
HSL: hsl(217, 91%, 60%)
Named: dodgerblue

All CSS formats for a solid blue color.

Example 2: Transparent Color

Input:

Color: #3b82f6
Alpha: 0.5 (50% transparent)

Output:

RGBA: rgba(59, 130, 246, 0.5)
HSLA: hsla(217, 91%, 60%, 0.5)
HEX with alpha: #3b82f680

CSS formats for a semi-transparent blue.

FAQ

What's the difference between RGB and HSL?

RGB mixes red, green, and blue light. HSL describes colors by hue, saturation, and lightness, which is more intuitive for adjustments.

When should I use RGBA vs HSLA?

Both support transparency. Use whichever format you're more comfortable with. HSLA makes it easier to adjust lightness.

What is HEX with alpha?

8-digit HEX (#RRGGBBAA) is a newer format that includes transparency. Not supported in older browsers.

Why use CSS variables?

CSS variables (--color-primary) let you define colors once and reuse them, making updates easier.

Are named colors reliable?

Yes, there are 147 named colors in CSS. However, they're limited to specific values, so most colors won't have exact matches.