[NBJack]

Here's a good starting point: https://www.sfgov.org/designing-visually-impaired

> Do not rely on color alone to denote information

> Use additional cues or information to convey content

The old icons were certainly ugly. But they had a unique shape (cue) and didn't rely on color. The new logo has text which helps, but this is where visual impairment becomes an issue (lack of focus to read said text).

I have no intent to take away from the meaningful choices made in this logo's design. But even just picking a unique shape for each component would go a long way.

[Ukv]

The old CSS and HTML logos had identical shape aside from the text. The new CSS and HTML logos have different shape (albeit subtle), larger text, and a greater difference in lightness.

Comparison, in monochrome at small size: https://i.imgur.com/3UvKKtg.png