Your tile looks like it might have a bit of a soft gray/olive green in it so I'd go with a light olive green. Here are some color ideas as the page you posted isn't big enough for me to really see the colors.

I really like the clean lines of your kitchen , it's beautiful and I would not add to much colour but you could use some accessories with green and white that would compliment this minimalistic kitchen. For example adding a bright green plant/s or an accessory the same colour as the clock on your top wall can put everything in a nice perspective!

I agree, I think the kitchen units are quite charming. The tiles date it, the top of the dresser and the piece over the window. Agree, would paint the ceiling a soft chalky white. I know they're becoming a little overdone but metro tiles would suit but handmade ones in a soft white unless you just remove the tiles altogether and have a splashback by the oven. Can you afford to update the floor? The dresser offers good storage space, have you considered either just removing the top half or updating the top so changing the architrave and glass panes? The fire itself looks lovely, do you need the heater in front? I also like the brick but the recesses are dating it. I definitely wouldn't paint the brick, if you were to do anything I think it would need plastering over to cover the niches unless you are able to match the brick. Do you have a better pic of the firep? If you are set on painting the kitchen units, I would look at the really dark greys and inky Blues for the base units, as I think they'd suit the style well, with brass cup handles with a very pale grey for ŵall units. Or if you want the same colour units, look at a mid tone grey.

I have just had a dark north facing narrow entrance hall painted in Great White (F&B) and the inside of a stained glass hall door painted Lace Glove (Colourtrend) . I do not like the effect of the 'ice white' look from the Great White around the door and have now asked the painter to paint just that area with a deeper pink colour (Romance by Fleetwood) to match one of the colours in the stained glass. I now think it looks too pink! Another sample pot which I haven't used but very similar colour is Cinder Rose (F&B). Any suggestions as to what would warm up the area surrounding the hall door? Many thanks.