That's an interesting dilemma. I would be inclined to go with the dark grey chairs because: - the chairs will be under the table surface most of the time, so it shouldn't be "too dark" when combined with the dark grey sofa; - the dark grey should tie in well with the sofa; and - the dark grey will provide a nicer contrast with the concrete table surface. Does the store you're purchasing from have a returns policy? If you explained your dilemma, they may allow you to take one of each colour home to see which colour works best in the space. Alternatively, can you go to the store which stocks the table, see what other chairs they have in the showroom and see if there are some light grey and dark grey variations that you can try in the store?

did granny also leave damask table cloths which would lighten the look instantly and, although i was very shocked at first, my sister in law PAINTED the antique chairs left to them and added some country style fabric seats and now uses the chairs with a modern table and it looks fabulous and is a daily reminder of dear old granny and i think she'd agree that you should mix and match what you like in your own home

Hi anzella, loving the new table and chairs, because you live in North QLD I wouldn't worry about a rug under the table, apart from you climate I find rugs under tables can become very annoying . If however you do decide to have one down the track, Sisal Rugs are great for your climate, you can even make your own to whatever size by buying the sisal and edging it yourself or getting a carpet place to overlock the edges. Some years ago I made two very large rugs and edged them with a wide black tape, I stitched them by hand, loved them in the dining and joining living room.What a shame you can't have the hanging lamp in the picture over your table, not sure if it would fit between your ceiling fans. cheers https://www.dealsdirect.com.au/product.aspx?saleID=1774c795-993e-4615-afbc-f53a2e1dcab3&productID=ojiuDsjunkG1Vz9n7zBrLQ&sc=7&c=12&mkwid=siJYklREw_dc&pcrid=189771976719&pkw=&pmt=&product=ojiuDsjunkG1Vz9n7zBrLQ_6xX6Gc4vLkKMpQtba7S3jw&gclid=CjwKEAjwoLfHBRD_jLW93remyAQSJABIygGp4cKCQmlURqkE4IbUxZFOwwVQKSQHTM9Fx7Xllv1FvRoCWqrw_wcB

It all depends on how much money you would like to spend. As your lounge is dark and your stools and bookcase are also dark I think white chairs would be fine, but then I would change the stools as well and take some white down to the lounge area. However you can buy stretchy covers for this style of chair for around $10 and there is quite a variety, so I would look on line for those to see if you like any of them as that would be a very easy fix.