Very clear and easy to see because it is so different from everything else.
The word 'starkest' makes people think of big differences and strong feelings.
Examples:
The starkest difference between the two is their size.
The starkest contrast is between black and white.
The starkest color is the brightest one.
The starkest sound is the loudest one.
The starkest contrast is like night and day.
The starkest thing about the two is how different they are.