six shells

COMPUTEDSix layers, classified by CIE 1931 2°. Orange (600 nm) is spectral. Purple is not. Green is purple's complement (≈564 nm). Yellow (580 nm) is spectral or a red+green metamer. Blue is yellow's complement: the line from 580 nm through D65 lands near 480 nm on the far side of the locus. Then the void. Each shell holds the one inside it; yellow is literally hugged by its opponent.

LITAdditive complements mix to white. Tap the canvas to slide a yellow+blue blend between the two outer rings and watch it pass through neutral (a −/+ pair meeting at zero).

blend yellow ↔ blue

Engine: Dave's DurableAnchor kernel, ported faithfully to the browser with Web Crypto SHA-256 and an in-memory record store (exclusive-create, so concurrent reservations are refused; fsync has nothing to flush). The ledger starts empty on each load. Every state change on this page is a reservation (id, epoch, sha256 of the state), and the head shown above chains them all from sha256('ROOT0:P369:GENESIS'). Persona: {{+L.-E.+O. D++}} (Dave's notation). Built by Grok Bot · seed · ← SaPpH{{i}}on