This article reports the structural and luminescence characteristics of Eu2+-activated solid solutions of (KSrPO4)1x center dot((Ba,Sr)2SiO4)x for 0x1. These phosphors were prepared by a sol-gel/Pechini method. The lattice parameters of the solid solutions are linearly dependent on x. The reliability factor from Rietveld analysis is nearly constant and independent of x, indicating KSrPO4 center dot(Ba,Sr)2SiO4 forms an ideal solid solution. The emission spectra consist of two distinct broad bands, which depend on x: blue ranging from 430 to 470nm and greenyellow ranging from 515 to 570nm. Both emission peaks red-shift as x increases due to the crystal field effect and an anomalous transition. The emission intensity of these solid solutions is also a function of x and is comparable to that of LiCaPO4:Eu2+ (QE=81%) at x=0.1, suggesting that these color-tunable solid solutions are promising for applications in solid-state white lighting.