The backsplash will be light and warm so it should compliment the Solarius nicely. There are different variations of Solarius out there, some shipments are lighter than others. I'd try to find the lightest shipment with golden highlights for an efficient contrast. I think the end result will be just perfect, along with the added under-cabinet lightning. Go for it!
I have very dark cabinets, redoing entire kitchen except for solid wood cabinets, was going to go with solarius, wondering if this will be lost in my dark kitchen; upgrading to all stainless steel appliances, similar-colored floor and backsplash as in picture, will this work in my kitchen; only one window so not a lot of light but am planning on buying some lights to help fix that by taking out ceiling fan and installing nice light