Limited Availability Forms

alpha and colorspace attributes for <input type=color>

The ability to control the opacity of a color picked using <input type="color"> and determine the colorspace of the selected color.

Baseline Status: This feature is currently Limited (not yet Baseline). Latest engine implementation shipped on Mar 31, 2025.

Desktop Browser Engine Support

Google Chrome

—

Unsupported

Mozilla Firefox

—

Unsupported

Apple Safari

18.4

Supported

Microsoft Edge

—

Unsupported

Mobile Browser Engine Support

Chrome Android

—

Firefox Android

—

Safari iOS

18.4

Specifications and References

MDN Browser Compat Data Keys: