You have to be living under a rock if you haven't noticed the insurgence of colored denim as of late. I am a big proponent of this trend.
I counted the pairs of colored denim in my closet last night and I am up to nine. I have paid every price point, but nothing was a better deal than these from Old Navy. The colors are great, the material is stretchy and the price can't be beat. My only advice: order TWO sizes bigger than you usually wear and if you are over 5' 7", order a long.