Color blindness, or color deficiency, causes difficulty telling different colors apart and may affect the shades and brightness of colors. Color deficiency can occur in females but is much less common ...

Colour vision deficiency is one of the commonest disorders of vision and can be divided into congenital and acquired forms. Congenital colour vision deficiency affects as many as 8% of males and 0.5% ...

Colors are an effective medium for communicating meaning. Some have certain implicit psychological associations. Red, for example, is often associated with power, love, and anger. Blue might convey ...