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Re: Contrast Question for 1.4.3

for

From: Beranek, Nicholas
Date: Jan 18, 2018 9:32AM

Hi Peter, we interpret font-weight: bold to equal 700 and, therefore, require 14pt 700 for 3 to 1 ratio consideration.

The following link is a reference guide that should help you: http://htmldog.com/references/css/properties/font-weight/

Nick Beranek
Capital One

-----Original Message-----
From: WebAIM-Forum [mailto: <EMAIL REMOVED> ] On Behalf Of Peter Quale
Sent: Thursday, January 18, 2018 11:27 AM
To: WebAIM Discussion List < <EMAIL REMOVED> >
Subject: [WebAIM] Contrast Question for 1.4.3

Apologies if this is covered in the list archives, but I did some searching and can find nothing there, nor any concrete information in Google searches.

When a style sheet uses relative bold weights like 300, 500, 700, is there a good number to assume a "medium bold" font is bold enough to only require a 3 to 1 contrast? Of course, many thin fonts will never be bold enough, but assuming we're using a typical monospace, solid font. Can one generally assume 500 is officially bold and anything less is not bold?

I feel like I read a method of analyzing the area of a font and deciding whether the surface of each letter sufficiently stands out from the background. But I might have just dreamed that.

Thanks to everyone for their contributions to the list!

-Peter Quale

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