what is the color of cobalt?
cobalt blue - a shade of blue tinged with green. aqua, greenish blue, peacock blue, turquoise, aquamarine. blue, blueness - blue color or pigment; resembling the color of the clear sky in the daytime; he had eyes of bright blue. cobalt ultramarine. pigment - dry coloring material (especially a powder to be mixed with a liquid to produce paint, etc.)