The color(s) The background is white or transparent. A blue gradient runs from top to bottom in a square, using 95% cyan and 95% magenta - fading to 70% cyan and 15% magenta using a radial gradient that has it's core beyond the bottom boundary of the square. A line sketch of a rounded suspension is/are claimed as a feature of the mark.
The mark consists of bridge runs in perspective from left to right over the gradient square. The bridge contains the same blues outside the square, and is reversed in white or transparent negative space inside the square. The angle of the bridge rises from 0° - 7° from the x axis. The letters "OTC", using the font "Optima Bold" are reversed in white on the blue square above the bridge, covering approximately one quarter to one third of the upper portion of the square. The letters "GROUP" sit outside and below the blue square in a 50% black, justifed to full width of the square using the same font.