Colours, text styles and buttons. Everything below is live, straight off the site.
Five, and that is all of them. Click one to copy its code.
Three fonts. Each one has a job.
Geist
Almost everything. Headings, sentences, links, buttons.
Page title48px
Sensors that resolve
Section title32px
Sensors that resolve
Card title24px
Sensors that resolve
Sub-heading18px
Sensors that resolve
Body text16px
The instrument reads chlorophyll, dissolved organic matter, hydrocarbons and plastics in the upper water layer, at spatial scales below one metre. This is the size and colour every paragraph on the site is set in.
Small text14px
Card descriptions, captions, table cells.
Geist Mono
Labels and numbers only. Never a sentence.
Section label13px
Table heading12px
Region
Numbers and units14px
48 bands, 250-800 nm, 0.42 mg·m⁻³
Dates and coordinates14px
2026-06-17 · 54.6208 N, 018.4021 E
Big number40px
0.42
Source Serif 4
Rare. Research and company pages, where the writing is long.
Editorial title48px
Twenty years of fieldwork
Editorial lead20px
Where flow-through systems average across a tow, the instrument resolves each metre of it, and the difference shows up wherever the water is not uniform.
Two. They trade places when you hover them. Try it.
Side by side
How they ship. The second one never appears alone.