Old tile match? - Tile Advice

[Teton74]

I've had to replace an electric shower and have been left with a hole on a tiled wall in bathroom. The tiles seem fairly old and I can't see anything that matches locally. Size is 250 x 330mm and colour as per image attached. Tje hole isn't quite as full tile size. Just hoping someone knows of something similar on style that could be substituted? Thanks.