Flora
if you wanted to go navy on the kitchen floor
pretty and neutral
may be too modern? cute
organic modern
less subtle...too yellow?
subtle tie of floor, shelves and cabinet colors
no new colors - just a bold way to keep the gray prominent amongst the white cabinetry
Floral hint without being so in your face
if you like the aqua accent color...this is pretty geometric versus organic...
this one goes a bit more rust/gray if you liked more of an orange accent...these are all kitchen rug ideas by the way :-)
fun...has some of the orange tones for the shelves, not too much of a contrast against the concrete floor, gives you some blue and green options...
a fun runner for the kitchen floor can help you tie your accent color from living and dining into kitchen. Not sure how you feel about teal...
Good example of some contrast against all the white. The cutting board on the counter, the little green plants and that swirly gray/black glass vase are all good ideas. Horizontal and vertical directions (I think you were going to throw in some books?) will be better to give the eye somewhere to go.
organic modern
and then maybe use dining table chairs as a pop of color
Maybe a patterned rug?
this is what a smiley face sofa looks like
Q