Quartz 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#FCFDFF

Surface#F4F6F8

Sunken#F0F1F4

Raised#EAEBEE

Hairline#E2E4E6

Ink#0F1015

Muted#62656A

Faint#8E9197

Accent#00187A

On accent#FCFDFF

On ink#FCFDFF

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.

#3F004D

#350455

#2A085C

#200C64

Measured contrast

Ink: 18.7:1
Muted: 5.8:1
Faint: 3.1:1
Accent: 14.6:1
On accent: 14.6:1