✓ On trackBaltic #2B5B9B
cell #D5DEEB
! WatchJasmine #FFDD77
cell #FFF1C9
✕ Off trackCherry #BC3C4C
cell #F2D8DB
◍ CompletedSky #88CCFF
cell #E7F5FF
– No dataSteel #B8B8B8
cell #F3F3F3
On trackWatchOff trackCompletedNo data
The sign sits in ink on the colour, so light colours keep their contrast. Status colours are also data colours: a chart encodes status or categories, never both.