#RGBA and #RRGGBBAA CSS colors have partial support Browser Compatibility Check

Description

CSS hex colors with alpha values like #RGBA or #RRGGBBAA are not supported by all browsers.

Help

In CSS Level 3 hex colors have 3 or 6 hex digits. In CSS Level 4 hex colors can also have 4 or 8 hex digits.

Applicable standards

• Chrome
• Edge
• Firefox
• Opera
• Safari
• iPhone/iPad

Change history

• 6.48 Mar 2023 Removed since the issue only affects ancient browsers.
• 5.36 Jan 2020 No longer fires for Edge.
• 5.29 May 2018 Added.

This page describes a web site issue detected in HTML documents by SortSite Desktop and OnDemand Suite.

Rule ID: BugCssColorHexWithAlpha