Although color selection is very personal, there are some things to keep in mind.
Light colors show scratches less.
We recommend white, ivory or gray for your hull because they look better after heavy use. They, as well as yellow, also work well for decks because the spare paddles and other deck scrapers leave little noticeable damage. Because the kayak decks are convex, glare is not really much of an issue. Yellow is by far the most visible if you want others to see you easily. Even though white is supposed to blend with whitecaps, it seems to be very visible.