In this space, stripes have been used to give the visual effect of a wider room. This porch is actually quite narrow.
Stripes are always a good idea for throw pillows. They pair nicely with other patterns, or speak for themselves. In the room below they are paired with more delicate edges.
See how stripes are also paired with delicate lines and fabrics in this bathroom, only here they opted for zig-zag stripes. This floor was painted with a stencil, although I have seen this done with tile and marble.