使用Colour：

import colour
# Using gaussian distribution reshaped to a uniform distribution with the 400-700nm shape and 1nm interval:
sd_transmittance = colour.sd_gaussian(650, 50).align(colour.SpectralShape(400, 700, 1))
colour.plotting.plot_single_sd(sd_transmittance)
# Transmitting using "CIE Standard Illuminant D65" as the "light source".
# The output is relative percentage, thus dividing by 100 to get a value in range [0, 1]:
XYZ = colour.sd_to_XYZ(sd_transmittance, illuminant=colour.SDS_ILLUMINANTS["D65"]) / 100
# Direct conversion from "CIE XYZ" tristimulus values to linear "sRGB":
colour.XYZ_to_sRGB(XYZ)

array([ 0.96628694,  0.36616433, -0.38398073])

注意输出颜色如何具有负蓝色分量，这意味着 sRGB 色彩空间无法再现它。