who but you would have these colors come to mind and they not be made up: "The color blue-magenta violet with hexadecimal color code #553592 is a medium dark shade of blue-magenta. In the RGB color model #553592 is comprised of 33.33% red, 20.78% green and 57.25% blue. In the HSL color space #553592 has a hue of 261° (degrees), 47% saturation and 39% lightness," and purple onyx is an actual gemstone https://www.google.com/search?