I am assuming you haven't finalised your wall colours and colours of any other fixed elements. In case you have finalised your color scheme you would need to see which of these colours blend well or complement with that scheme. Assuming none of this info is available, then you could look at the neutrals which go with all colours. The white tile and the 2 colours at the end would be preferable. If you want color on the floor as well as drama, you can choose from the 2nd options from both sides or even the 1st from left.

Hi Shivam, the best size is either 300mm x 300mm or 600mm x 600mm. The reason is - smaller the tile size better the maintenance of slope to achieve drainage of water. Also, use anti skid tiles to avoid accidents.

For my living room

Best combo floor and wall ?