Bluebird is a pretty medium value cerulean blue. There are multiple uses for this blue. The Pale Bluebird would be great for a sky and Light Bluebird would be a nice Bluebird color. Will be stunning with all most all of Yellow Orange -22 colors, especially Joyful Orange. For a stunning Triadic Color Harmony include Blue - Red 18 ( Wine & Roses) and Chartreuse - 2 ( Pistachio). There are so many possibilities with Bluebird.
For a good "Bluebird" use Light Bluebird & Medium Bluebird and Light Flamingo Dance. Bluebird is now available in Sparkle.