Mary Ellen Bute's Tarantella (1940). Blue and Red for Black. Then Red and Magenta for Redmagenta. Using illuminated coloured acetates or gels it seems, for subtractive colour.
Note the richness gained by reversing out to white from a coloured background, counterpointed by colour on a white background.
The mis-registrations leading to a 'black' and a white on the edge of the diagonal rectangles may or may not have been deliberate but they offer object-volume.
And the exchange between hand-liquid and geo-stable line or form.
Labels: Colour Process