red = 51
green = 255
blue = 51
alpha = 128
html_color = "#" + "{0:02X}{1:02X}{2:02X}"\
.format(red, green, blue)
# html_color is #33FF33
print("style=\"color: " + html_color + "\"")
# with transparency
html_color += "{0:02X}".format(alpha)
# html_color is #33FF3380
print("html_color is", html_color)