On

On (on.energy) is a website in the Developer Tools category. Its homepage is captured as 5 sections, top to bottom: hero, content, stats, testimonials and statement. We also captured its product, about, blog, contact and security pages. The hero leads with “Perfect Power for AI Factories.”.

The capture records a palette of #000000, #eeeeee, #202020, #afafaf, #7d7d7d and #4b4b4b. The largest share of captured homepage sections uses #000000 as its CSS background. Suggested token roles are #000000 for background and #eeeeee for text; check them against the screenshot. Headings are set in Univers Next Pro, which it also uses for body copy.

Compared with the 77 other Developer Tools sites in the library, On is one of the 40% that go dark, and the group's most common heading face is Inter, where On uses Univers Next Pro. The average Developer Tools homepage here has 8 sections; this one has 5.

Worth studying here: the hero, for the relationship between imagery, type and navigation, the stats band, for how numbers are sized against their labels and the testimonials, for how quotes, names and roles are laid out. Open any section for its palette, fonts and a build prompt you can hand to Claude, Cursor or v0.

More references: browse all websites.