In this paper we have shown that Sr can be incorporated into Ba10(MnO4)(PO4)5Cl2 resulting in the synthesis of new apatite pigments. All the pigments had a dark turquoise colour, with the exception of the composition, Ba6Sr4(MnO4)(PO4)5Cl2, which gave a more commercially desirable blue colour. The difference can be attributed to this latter phase showing complete Sr/Ba ordering over the A1/A2 sites, and the work highlights that cation ordering can be modify the colours of apatite pigments. The related Ba6Sr4(PO4)5(MnO4)Br2 blue could also be prepared. Given that these materials are prepared from low-cost precursors, they represent promising new blue pigments. Further studies are warranted to explore the local structural changes around the MnO4 chromophore in order to rationalise the observed colour changes on Sr doping.