You may not think of logos as inherently Accessible, or not. Even if you're considering WCAG compliance or Universal Design in your design process, you're mostly likely just adding alt text to your logo (which is important), and calling it good.
This guide will walk you through how to make your logo more Accessible, and demonstrate to Dis/abled users that you're designing for them, too.
<aside> đź’ˇ
Good design is a channel for good communication. So, let's make sure that channel is incorporating as many people and their abilities as possible. There is no such thing as “Universal” imagery, but by ensuring symbols are common, clear, and identifiable, I'm including as many different cognitive abilities and visual understandings as possible.
Color contrast is a cornerstone of any Digital Accessibility workflow. Ensuring a 4.5:1 contrast ratio for critical content will allow visually impaired or color blind users to understand your brand.
Obviously you should get feedback during your design process. But more specifically, seek out feedback from Did/abled users whose experiences are likely to be affected if you don't get it right.
Your Style Guide will dictate how you logo is used, and must consider Accessibility in layouts for print and screen.