I’ve chosen a basic narrow black and white jailbird striped blouse to pair with each of the colour blocked items below. I like how the lines of the striped top work with the lines of the colour blocking. Sometimes the lines of both items run in the same direction (horizontally), and sometimes in the opposite direction (horizontally and vertically).
Stripes with a Colour Blocked Cardigan / Pullover
Stripes with a Colour Blocked Jacket
Stripes with a Colour Blocked Skirt
Stripes with a Colour Blocked Dress
Stripes with Colour Blocked Trousers
The colour black is common in each of the pairings to create a cohesive look. This is not at all a prerequisite for the formula, but the common colour denominator helps marry the two items together.
A simple two toned stripe, like the blouse, is one of the four patterns that I suggest for easy pattern mixing. You can substitute the simple stripe for any of the other patterns mentioned in that post and mix it up with a colour blocked piece. For example, pairing a black and white polka dot blouse would work just as well as the stripe.