The CXI Color Calculator from Wybron helps lighting production personnel find and program colors for the CXI dual-gelstring color changer. Scroll through two overlapping gelstrings of cyan, magenta, and yellow to blend the ideal shade, then plug its numerical values into your lighting control console to have a CXI color changer move to that color. The Color Calculator also gives you the values needed to replicate several colors from the GAM, Lee, and Rosco collections of theatrical filters.