The mark consists of the word "xchange", the word "centre", and a stylized figure to the left and partially above the words. The word "xchange" is formed by block-style, lower-case letters in black. The word "centre" is formed by italicized letters in black, with the letter "C" capitalized and the remainder of the letters lower-case. The word "centre" is below and partially to the right of the word "xchange", with the extreme top portions of the letters in the word "centre" overlapping the extreme bottom portions of the word "xchange". The figure to the left and partially above the words is formed by three stylized rectangles around a common circle. Each rectangle consists of one short, concave, semicircular, inner side that helps to form the common circle; one longer, concave, semicircular outer side on the opposite side of the rectangle; and two straight sides that join the concave sides of the rectangle on either end. The rectangle on the bottom is in dark green, the rectangle on the top left is in dark blue, and the rectangle on the top right is in dark orange, with the colors in each rectangle darkening as they approach the sides. The mark is set against a white background.