How can I describe “High Colour” and “True Colour” in terms of bits.?

you can use ';DISPLAY TUNE'; software.How can I describe “High Colour” and “True Colour” in terms of bits.?
High color is 15 or 16 bits, a.k.a 32767 or 65535 colors. Sometimes you'll see it described as colorspace when used in video, for example RGB 555 (5 bits per color).





True color is 24 bits. There is 32 bit true color - the extra 8 bits is either unused (faster than handling 24 bits), or as transparency information.