I agree crisp white and a change of handles would look great. Also a industrial grey would look amazing, especically with the exposed hardware. Obviously this all depends on the rest of your kitchen but you could be more extreme and apply something cheap like chipboard to the back and apply some fun wallpaper to make more of a feature of all the items that you will have on display.

Dear Azfar, I think your units are lovely, very sophisticated and much nicer than white. Your units and work tops are very similar to those I have in my kitchen, which also have black granite tops. I also have a wooden floor of a similar shade, please don't change this, it is lovely. I was aware when I had my kitchen fitted that the units appeared darker than in the showroom but this was due entirely to the colour of the walls they were installed on. To lift the units, and celebrate their beautiful colour, you should paint your walls a darker and contrasting colour, I have chosen a really shocking pink, Rock Candy, but there lots of options. The showroom I saw my units in used a burgundy colour, too dark for my Victorian kitchen. There are so many colour options which don't have to be expensive, play around with a few tester pots and see which you prefer. This is by far the cheapest option, and I'm sure you'll fall in love with your kitchen units again once your units are allowed to stand out. Incidentally your unit colour helps to visually integrate your stainless steel 'fridge, another reason to stick with it. If you want to add units in the future you could pick up on your new wall colour for a very stylish look.

I don't think it will date. I do think that some styles of cabinets will date sooner than others. But different colour island than wall cabinets is a timeless look in my opinion. The green is gorgeous. A safer choice would probably be the darkest blue/black (?) And i like that with the white that's on the right in the photo. The other white has a pink undertone it seems and I expect that to give a problem with wall colours for example.

Before you get the paint brush out - add some top lights to the wall cabinets - allowing warm light to bounce up to the ceiling and back down again . You might find that lifts the feel of the place without all the effort of re painting doors .