ClickStack Demo Day (29/05/2026) - New series color palette

Elizabet worked on unifying the data visualization color palette across HyperDX and ClickStack themes, in support of Alex's color picker work. She tested against industry-standard palettes (Tableau, Observable, IBM) using a color vision simulation tool to check contrast and accessibility. The ClickHouse palette performed poorly — the green doesn't have sufficient contrast on a white background — so it was ruled out. Observable's palette came closest to passing all accessibility checks, with a small blue tweak. It will now be shared across both HyperDX and ClickStack themes rather than maintaining two separate palettes with different exception rules for each. Part of the ClickStack Demo Day series. See the full post at https://clickhouse.com/docs/use-cases/observability/clickstack/demo-days/2026/2026-05-29