(https://www.nyip.edu/images/cms/photo-articles/use-high-contrast-for-black-and-white.jpg)
Contrast
A subject with dark shadows and bright highlights would not be ideal for a color photograph. Yet, for black and white photography, this type of high-contrast light can be extremely effective. The harsh mid-afternoon sun is no longer a detriment, but an enhancement. This is a major shift in the way one thinks about exposure. To help recognize these chances, look beyond what is immediately evident and pre-visualize the scene in grayscale. Over time, you'll know what scenes will look best in black and white before you even press the shutter.
Source: https://www.nyip.edu/photo-articles/archive/use-high-contrast-for-black-and-white