They are indeed rendered in different colors, which you can see with Firefox's Eyedropper tool. Perhaps one or the other of your browsers is using a different c

They are indeed rendered in different colors, which you can see with Firefox's Eyedropper tool. Perhaps one or the other of your browsers is using a different color profile. You can also use the Web Developer Tools to see if they're actually using different fonts. (I don't have Chrome installed to check.)