greenish-blue

His eggs were the prettiest of all, a greenish blue, a robin's-egg blue, the dressmakers call it.

Nitrate of lead gives a white precipitate, and the salts of copper greenish-blue ones.

Orange induces greenish blue, and greenish blue induces orange.

Four, five or six eggs are laid; these are of a pale greenish-blue hue, speckled or flaked with sepia markings.

The eggs are pale greenish-blue, richly marked by various shades of deep chocolate and reddish-brown.