In designing CMYK Day, I turned the technical concept of four-color process printing into a participatory event by making substitutions within the usual screenprinting process. Gravel represents halftone dots; steel hand tools stand in for squeegees; a parking lot is the substrate; participants become a “human press.” Souvenir tee shirts display definitions and color-code the teams.

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CMYK Day is about participation in active and passive forms. Teams of C, M, Y, and K apply colored gravel inside a delineated space using special tools. Participation is also a creative exchange; in return for a souvenir tee shirt, I collected a photo or sketch response from each participant.

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Between March 15 and April 25, 2009, the gravel was subject to slow, accidental forms of participation. Exposed to weather, car and foot traffic, the color mixed, spread throughout the space, and faded. The changing states of the composition are shown here.

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