take a sample of the cabinet paint , painted on something.....take it in and computer match it and get semi gloss for this. OR.....I would take a little time on my own.....paint the cabinet paint color on a card /firm paper....go to a Ben Moore paint store and hold it to the hundreds of sample cards on the wall.....you can get very close...then pick the one just a tad grayer and a shade darker. It will be barely noticeable but join the grayness of the tiles with the color of the cabinetry. Stark white up there.....move away from that.....Semi gloss gives the sheen element which has a brightening effect...so the tiny bit darker really works well I find and it isn't really a different color but helps molding or trim blend . On certain areas bright white gloss trim is called for but not with these cabs.