is dcpip blue in color
One of the nonbiological hydrogen acceptors used by Hill, the dye. 2,6-dichlorophenolindophenol (DCPIP), now called a Hill reagent. This reagent in its oxidized form is blue and in its reduced form is. colorless. When the leaf extract supplemented with the dye was. illuminated, the blue dye became colorless while O. 2 was produced. In the dark, neither O. 2 production nor dye reduction took place.