RGBA Color Picker - Pick & Customize Colors with Alpha

Free Online RGBA Color Picker

The Tooloogle RGBA Color Picker lets you pick, fine-tune, and copy RGBA colors with full transparency control. Perfect for modern web design where translucent overlays, glassmorphism, and depth-rich UIs depend on precise alpha values.

Features

• Visual picker — click on a color canvas to pick R, G, and B.

• Hue slider — rotate through the spectrum independently of saturation and lightness.

• Alpha slider — from fully transparent (0) to fully opaque (1).

• Numeric inputs — type R, G, B, and A values directly for precise control.

• Live preview — sample swatch over a checker background so transparency is visible.

• HEX-with-alpha — equivalent #rrggbbaa output for modern CSS.

• HSL preview — see the same color in HSL for designers who prefer that model.

• Recent colors — quick access to recently picked colors.

How to Use

1. Pick a color visually on the canvas or by typing R, G, B, A values.

2. Drag the alpha slider to set transparency.

3. See the preview swatch update over a checker background.

4. Copy the RGBA or HEX-with-alpha string for your CSS.

Common Use Cases

Designing translucent UI elements (modals, tooltips, popovers). Creating glassmorphism cards. Building hover and focus states with subtle color changes. Tinting images and backgrounds with color overlays. Animating between transparent and opaque states.