In 1379, one Thomas de Crosby was entered in the Poll Tax Returns of Yorkshire, and in 1383, Henry Crosseby, witness, was noted in the Assize Court Rolls of Warwickshire. Sir John Crosby was sheriff of London in 1470, and Brass Crosby, lord mayor of London (1770), became president of Bethlehem Hospital in 1772.
Monochromatic colors are all the colors (tints, tones, and shades) of a single hue. Example of a monochromatic color scheme. Monochromatic color schemes are derived from a single base hue and extended using its shades, tones and tints. Tints are achieved by adding white and shades and tones are achieved by adding a darker color, gray or black.
1 Halftone â the use of black and white in a pattern that is perceived as shades of grey (may be extended also to color images) 2  Polychrome â of multiple colors, the opposite of monochrome.  Monochromacy (color blindness)