Web Development
Web Developer Guidelines
Visual Design Recommendations

Checkpoint 5.12 - Core

Logos are specified in the alt attribute

WCAG 1.0 Priority 1

WCAG Guideline 1. Provide equivalent alternatives to auditory and visual content.

A company logo is considered important. Logo images which are links usually point to the home page of the company. Therefore, logos must have specific alt attributes. The alt attributes must specify that the image is a logo and contain any relevant text that is part of the logo.

Requirement

Specify logos together with all accompanying wording in alt attributes for all images used as logos.

Example

Image Alt attribute
Commonwealth Games Federation logo “Commonwealth Games Federation logo”
State Government of Victoria logo: Victoria The Place To Be “State Government of Victoria logo: Victoria The Place To Be”
Victorian Registration & Qualification Authority logo “Victorian Registration & Qualification Authority logo ”

Checking Tool

  • Analyse image alt attributes in relation to the context of the page they appear in
  • Internet Explorer - AIS Toolbar: Images > Toggle Image > Alt
    This will turn all images off replacing them with the values of the alt attributes..
  • Firefox - Web Developer's Toolbar: Images > Display Alt Attributes

Information Source

The original source of this information is located on the W3C web site  (www.w3.org/TR/WCAG10-TECHS/#tech-text-equivalent)

 

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