The color(s) dark blue, medium blue, light blue, dark green, medium green, and light green is/are claimed as a feature of the mark.
The mark consists of the word "KEYTRUDA" in dark green bold block letters. Over the "Y" letter is a geometric shape mimicking the top part of the "Y" letter, consisting of two sets of two 3-dimensional wedges made of triangles and quadrilaterals with one wedge on top of the other. The top wedge appears in dark blue, medium blue and light blue, and the bottom wedge appears in dark green, medium green and light green.
The wording "KEYTRUDA" has no meaning in a foreign language.