The 2nd thumbnail above shows the proofing swatch on Kona Cotton (when that fabric had a gray tinge - so may not do it justice) - swatch recommended to confirm colors on fabric type.
Chalk on canvas, navy background applied [#070559], basic repeat.
[Currently set @ Fabric: 300 ppi ~15" x 15" repeat, Wallpaper: 374 ppi ~12" x 12" repeat, Gift wrap: 624 ppi ~7.2" x 7.2" repeat]
Wallpaper Coverage Calculator
Based on the dimensions you provide, this calculator will determine the number of custom-length sections of paper you'll need to cover any surface. If the height of your surface varies, input the tallest dimension in order for the pattern to line up correctly.
Enter your dimensions in feet (1 foot is 30.48 cm).