Greenish-blue hue is a color that falls between blue and green on the color wheel. The term is often used to describe shades of blue-green, turquoise, and aquamarine. The crossword solutions for this term are AQUA (4 letters), TEAL (4 letters), and CYAN (4 letters). Aqua is a light blue-green color, TEAL is a dark blue-green color, and CYAN is a bright blue-green color. All three colors are considered to be part of the greenish-blue hue family.