An illustrative application, not a historical print. Poster text is sample artwork.
Use this palette
Digital sRGB values, in source order. SVG swatches use equal widths, not historical proportions.
Pair contrast
Sulpher Yellow on Pale King's Blue · 1.33:1
AA normal text: Below 4.5:1
AA large text: Below 3:1
WCAG 2 contrast for this pair’s digital sRGB approximations only, not the whole palette or
printed colours. Large text means at least 18 pt regular or 14 pt bold. Ratios display rounded
down to two decimals; checks use full precision.
Related originals
Ranked by shared historical colour identities, not visual similarity.