hi. try this link https://www.firedearth.com/tiles/suitability/hearths-+-fireplaces

could be the best place to start :)

This company sell fireplace tiles http://www.c20fireplaces.co.uk/fireplace_parts_tiles

All of these can be used on a fireplace and you can have any of the colours any of the sizes:- Victorian Ceramics The marine Blue is particularly nice.

If you're keeping the colours in the room, you may wish to go for a green though, as it will tie in better with everything else.

You could also visiting a local fireplace showroom for inspiration

Hi Maria,

Most tiles, especially porcelain ones, are fine to go around a fireplace. What is more important is the adhesive used and how far away from the heat source they are placed.

We have a huge selection of styles which are all suitable for around fireplaces - http://www.toppstiles.co.uk/section1582/page1/fireplace-tiles 

Our 'Split Face Mosaic' tiles offer a similar look to the image you included and come in a range of colours.