Daylight
The original. Cobalt on white, mint and powder washes, charcoal pills as the only dense weight.
Use Daylight#0069e0
Design
Five palettes, one token set.
Every colour on this site resolves through a custom property. Swap the tokens and the whole thing re-skins: same markup, same components, a different main colour driving all of it. Pick one and browse; it sticks until you reset.
Ember
Golden hour. Burnt amber accent with the canvas warmed to match, so the colour never sits on a cold ground.
Use Ember#c2410c
Moss
Editorial. Deep forest green reads as ink more than as a link, and the cards trade their curves for corners.
Use Moss#15803d
Plum
The saturated one. Every surface leans toward the accent, so the page goes violet all the way through instead of neutral with a violet button.
Use Plum#7c3aed
Midnight
Inverted. Cyan carries the primary button, because a charcoal pill on a dark ground disappears.
Use Midnight#22d3ee
Carbon
Brutalist mono. Square everything, 2px rules, headings in the mono stack, and one alarm red used only where you should click.
Use Carbon#e11900
How the swap works
Each palette is one small sheet of :root overrides loaded after the base stylesheet, roughly forty lines, no component rules duplicated. Midnight and Carbon add a handful of extra rules, because the base sheet hardcodes a few light values (divider rules, table borders, input outlines) that a full inversion has to restate.