I love brights!
But when building a design, I always start by scrubbing my inspiration image of color. This makes it easier for me to focus on the lines and shapes I want to pull into the eventual machine knitting pattern. Here's an example with the SKYLINE design.
In order to develop a design, I had to convert my favorite color photo into a black and white image. Then I had to sketch the shape until I found the angles that evoked the skyscrapers and sheer volume of construction evident in the city.
In just black and white, SKYLINE had a very urban feel - exactly what I was looking for in the eventual design.