−λ ⟷ +λ

LITTwo spectral lines on opposite sides of white, on a straight line through the white point on the CIE diagram, can be mixed to match white exactly. These are complementary wavelengths. Yellow-orange pairs with blue, and green has no spectral partner: its complement is a purple.

COMPUTEDChoose the minus wavelength. The page finds the plus partner whose chord passes through D65 and solves the mixing ratio, giving white from just two colours. READINGThis is Dave's −+ mirror in colour: the two ends cancel to a neutral Σ = 0 centre, like the pair cipher's mirrored lines. Nesting: two coloured lines around a white centre, in the void.

−λ nm sweep

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