This beautiful coloring page has many vibrant red hearts scattered around a clear vase that is sitting atop a light-colored surface. To bring out the vivid red hearts, try using an array of colors such as coral, pink, and red. Blend colors to shades of pink and even purple to provide depth and movement. To make the vase stand out, add traces of light blue or even a hint of yellow. As for the background, try a range of colors from a beautiful lavender to a shade of yellow or orange to add warmth. Finally, use light color accents such as white to give areas some extra shine.