Yes, you can change the color of your kayak. There are a few ways to do this, but the most common and easiest way is to use a vinyl wrap.
A vinyl wrap is a large piece of vinyl that can be cut to fit your kayak and then applied like a sticker. Vinyl wraps come in many colors and patterns, so you can find one that matches or complements your kayak's existing color scheme. Applying a vinyl wrap is relatively easy and does not require any special tools or skills.