Mixing bring solid colors with gray or blue in any shade will almost always work out well. The colors you choose for your session definitely set the tone for the photos. This photo is modern, fresh and fun not only because this family is all those things, but because the colors are so cheery.
To see more photos and other wardrobe ideas from the actual family session shown here look at these. Don’t be scared to wear bright solid colors to your next photo session. They really look great when done right! 🙂