When Jennifer Lawrence was growing out her pixie, her hair colour suddenly seemed much brighter. While she is one of the lucky ones who can pull off any shade, the bright blond helped mask any weird lengths and kept her looking like the glowing actress she is. If blonde isn't your thing, find a colour that is dynamic and brings in a lot of light to accentuate your hair's growing length. Fun colours like pink and purple also work to keep hair looking interesting.