dashboard-color-and-visual-hierarchy

Chooses the palette a variable's own type requires and keeps every mark and label readable, by never letting colour carry meaning on its own and by holding text to a measured contrast ratio on both grounds. Use when assigning colours to categories or to an ordered scale, when a status column is shown as a green or red fill and nothing else marks the state, when a design leans on colour alone to carry its message, when a page has so many accents that nothing stands out, or when checking that a palette survives a light and a dark background.