Discovering Your Target Audience
Because they tend to offer a fair amount of contrast from the other colors, triadic color schemes tend to feel a little juvenile, but you can easily use that to your advantage. Rather than targeting an adult audience, these palettes are perfect for toddlers, kids and tweens. At full saturation, these colors are playful and fun, exerting a feel of energy without urgency. Just like analogous color schemes, it's a good idea to pick a single color with two accents, or even better, use these colors to supplement a mostly white layout.
Want a fantastic, popular example? Look to the left! Crayola's website uses bright, primary colors to market its very familiar brand of children's art supplies. These colors are attractive to young children who seem to be drawn to the high energy of bold primary colors. Not only do children associate these bright colors with fun, parents tend to be drawn to things that are brightly colored when looking for services and products for their kids. So this is a great theme if you run a daycare website, are creating signage for a playground or designing graphics for children's clothing.
If you find that the color scheme still feels too bold for your liking, lower the saturation or the brightness of the colors involved. By doing this, you can easily expand the audience your palette can target.