acqua on indigo

I rotate clothes, for example shirts and ties. I've dozens of ties and a bunch of dress shirts. The shirts are basically either blue or white. The ties are any color or pattern. Sometimes the rotation turns up an interesting combination. If it's really awful I wear something else, but if it's just unusual, I'll go with it. Today, as it happens the combination is one that's never come up before: The shirt is an interesting indigo blue -- sort of a classy workshirt color. The tie is a solid acqua, woven wool. This gives you the idea.