Final answer:
The colors on a traditional Major League Baseball, such as one from a Mariners game, are red and white. The red is found in the stitching, while the baseball itself is white.
Step-by-step explanation:
The student wants to know about the colors on a baseball from a Mariners game, but the provided references do not directly address professional sports memorabilia or specific events such as a Mariners game. However, based on general knowledge of baseballs used in Major League Baseball (MLB), we can infer that the traditional colors on a baseball are red and white.
The red color is found in the stitching - known as the seams - of the baseball, while the main body of the baseball is white. The Essex and Hester reference discusses an artwork with a red background and black lines, which is not relevant to the Mariners baseball. The passage about Figure 9-13 discusses a soccer jersey, which is also not relevant to the Mariners baseball question.