You're right, there's a weird dearth of TKL w/blue at the moment. Your best bet is probably to get a backlit Ducky and just leave the lighting off. Overclockers have them for £90 just now, so it's not much of a premium over the non-backlit zeros that CCL and the like were selling for £70-odds. Annoying to have to spend extra for a feature you don't want though. You might want to email CCL or Kustom to see if they could get a non-backlit in for you, or post a WTB on the classifieds.