Graz. Based on other Sony chips, colour QE is probably somewhere round .55 - .6, likely to be something like that shown in figure 8 of:
http://www.ptgrey.com/support/downlo...for_ICX445.pdf
note that colour QE only applies in the transmission bands of the Bayer filters - you actually end up with less than about 1/3 of the photons getting through the filters, so the effective QE compared to broadband is likely to be a bit less than 0.2 for a high performance OSC.