John's Blue in Dutch Boy

The closest Dutch Boy paint to Vista Paint John's Blue (0617) is Celestial Horizon DCP-0589, a delta-E of 2.62 away — the nearest Dutch Boy makes, and near enough for most rooms, but it is not an exact copy.

Light reflectance is effectively identical, 36.0 against 36.2. Undertone reads as blue against blue, at chroma 16.3 and 18.0.

Codes are not transferable between manufacturers and no brand publishes a conversion table, so every figure here is measured from the published hex values rather than taken from a chart.