1. A method comprising: obtaining an image for presentation to a user, the image comprising a set of pixels; identifying one or more color components associated with each pixel in the set of pixels; generating a vector for each pixel based at least in part on the one or more color components associated with each pixel, generating one or more clusters each including one or more pixels based at least in part on the generated vectors; generating characteristic vectors for each cluster based at least in part on the generated vectors, a characteristic vector for a cluster based at least in part on the generated vectors of one or more pixels included in the cluster and specifying a color associated with the cluster; selecting a set of the clusters based at least in part on the characteristic vectors; determining a centroid based on the characteristic vectors for each cluster in the selected set of clusters, the centroid identifying a dominant color associated with the image; and storing information associating the dominant color with the image.