Snow Indigo

A light system. The ground and its surfaces are one neutral stepped in lightness, so the page never becomes one hue at nine brightnesses, and the accent carries real chroma so it can mean something when it appears.

Design an app with this

Roles

Ground#F9FFFF

Surface#F2F7F8

Sunken#EDF2F3

Raised#E7ECED

Hairline#E0E5E6

Ink#0B1213

Muted#5E6668

Faint#8A9294

Accent#03045E

On accent#F9FFFF

On ink#F9FFFF

Data colours

Left over after the roles were filled, and kept at full chroma. A chart series is not chrome: it keeps its own colour through a theme change, and these are the ones spoken for.

#0077B6

#009CBF

#4898A6

#74989F

Measured contrast

Ink: 18.7:1
Muted: 5.8:1
Faint: 3.1:1
Accent: 17.6:1
On accent: 17.6:1