In the coloring page, there are four people in eye-catching costumes. The two men are wearing blue and red costumes adorned with a white '4' on the chest. Similarly, the two women are wearing matching red and blue costumes with a white '4' across the chest. Their outfits stand out against the blank canvas of the page and will captivate the colorist. To bring out the vibrant colors even more, I suggest using light, bright shades. The men's costumes should be filled with a bright blue and the woman's with a bold red. The white '4' should be filled with either a deep navy blue or crisp white. Ultimately, the picture is up to the colorist's discretion, so if they want to get creative, they can choose other color schemes.