Since the colors of A and B are close, it is easy to be confused and inconvenient to produce. It is recommended to change the color of A to the color of B.
Since the colors of a and B are similar, they are easy to be confused and inconvenient for production. It is suggested that the color of a should be the same as that of B.
Because the colors of A and B are close, easy to be confused and inconvenient to produce, it is suggested that the color of A be changed to be the same as that of B.