Cally Colour Chart is to be a lighting display under the Cally Bridge that interacts with the traffic. A colour will emerge, while the name of the colour will appear on a screen. Passing vehicles and trains will make the colour fade into the next one. There can be over 200 colours.
You can choose and name the colours at the Cally Colour Chart web site until 5 July.
Islington Council has commissioned the work with funding from Transport for London. You could recently have seen other work by the artist, Phil Coy, at the Whitechapel Gallery or the South London Gallery.