I think your first question should be: What is your budget? Colors are really the least of your worries.
Doing 2 bathrooms and a kitchen could cost you $60,000 or more, depending on labor costs in your area and what kind of fixtures you use. That's not even counting the floors.
Do you have any idea what your plumbing situation is? Are you going to need to redo wiring if you do the kitchen? (In the US at least you must install those outlets with the little breaker in each when you renovate.) Are you going to get all new counters, sinks, bathtub, toilets etc?
Weird question, but--are the walls in your bathroom square, or are they leaning like happens in every old house? This can make tiling a nightmare unless they actually redo the structure of the walls first. (Just sheetrock usually though)
Do you have a place to live while you do all these renovations? You're taking about losing the use of your house for 2-3 months. You do not want to live there while they are doing all of this or you will lose your mind, get divorced, etc...
. Seriously--do you have any stress in your relationship right now? Because this will REALLY put it to the test. People divorce over renovations.
If you are going to spend this much money and time, have you considered simply selling your house and buying a new one that doesn't need so much work? If you have allergies this is going to make a huge mess of dust and crap everywhere in your house.
This sounds like a MASSIVE project that could cost you a huge amount of money and ruin your lives for months. (But could look great once it's over of course...) You need to think about these more serious issues before you start imagining color schemes. And it's pointless to dream about designer kitchens when you can only afford Home Depot (which, by the way, is mostly junk...you get what you pay for.). Looking at amagazines is nice but they will try to show you the most high-end stuff usually.
You need to know your budget before you can do anything. (and then add 20% to that budget because these things always cost more)
If you just don't have $30,000-$60,000 for a total kitchen rehab (bear in mind that I am in a very expensive city and this stuff may well cost less where you are), see if there is a Habitat For Humanity resale store near you that seels donated cabinets, fixtures etc., or another store like that. Can save you $$$$.