Blue. It's not a color you might first think of as naturally occurring in nature. But there are many lovely (non dyed) flowers out there for your liking.
There are delicate accent flowers like Tweedia and Forget-me-Nots.
There are textural gems like Blue Globe Thistle, Porcelain Vine, Blue Eryngium, and Blue Alliums
There are spring bulb minatures like Grape Hyacinth (or Muscari).
These I've never seen in person before, but I assure you they are real.
Other cool-toned options: Clematis, Acacia, Delphinium, Bearded Iris, Hydrangea, and Eucalyptus.
I'll leave you with some blue hued snippets from a couple of our Summer photo series. Have a wonderful week!