One notable difference between X11 and W3C is the case of "Gray" and its variants. In HTML, "Gray" is specifically reserved for the 128 triplet (50% gray). However, in X11, "gray" was assigned to the 190 triplet (74.5%), which is close to W3C "Silver" at 192 (75.3%), and had "Light Gray" at 211 (83%) and "Dark Gray" at 169 (66%) counterparts. As a result, the combined CSS 3.0 color list that prevails on the web today produces "Dark Gray" as a significantly lighter tone than plain "Gray", because "Dark Gray" was descended from X11 – for it did not exist in HTML nor CSS level 1 – while "Gray" was descended from HTML. Even in the current draft for CSS 4.0, dark gray continues to be a lighter shade than gray. Some browsers such as Netscape Navigator insisted on an "a" in any "Gray" except for "Light Grey".

[–] RampantParanoia2365@lemmy.world 3 points 16 hours ago (1 children)

"Gray" with an A looks so wrong to my eyes. I don't think I ever see it used normally.

[–] JohnEdwa@sopuli.xyz 3 points 15 hours ago* (last edited 15 hours ago) (1 children)

"Grey if it's in England, gray if it's in America."

Same as tire vs tyre, center vs centre and so on.

[–] RampantParanoia2365@lemmy.world 1 points 15 hours ago

I am an American living in America, still looks weird.

[–] A_norny_mousse@feddit.org 2 points 19 hours ago

I knew it'd be something like that. Don't try to fix it, would be my advice. BTW my rgb.txt seems to have 2 entries for every tone of grey resp. gray.