How many different colors does bmp support?

BMP (Bitmap) format supports a wide range of colors depending on the bit depth. It can represent 1-bit images (black and white), 4-bit images (up to 16 colors), 8-bit images (up to 256 colors), and higher bit depths like 24-bit, which supports over 16 million colors (approximately 16,777,216 colors). Additionally, there are even higher bit depths, such as 32-bit BMP files, which include an alpha channel for transparency but still represent the same range of colors as 24-bit.