hi, I would like to print an object which has a part in vivid bright orange in glossy finish full color sandstone. I mean an orange color like in this "Orange Car V8" model: https://www.shapeways.com/product/XEC547G95/orange-car-v8?optionId=60843554&li=marketplace (i don't need the actual orange-fruit-like surface, I only need a simple uniform orange color). I tried to set different diffuse colors to my material e.g. RGB #ffb400, as in https://www.colorhexa.com/ffb400. But on Shapeways 3d view it always turns into light brown. I understand from the forums that Shapeways converts RGB to CMYK and I have to make it up by setting it lighter, but I could not find an RGB value that becomes orange. It only changes to lighter or darker tints of brown, or yellowish brown. I use Blender and export the file to Colada (dae) or x3d format for Shapeways. Can someone specify an RGB value that will work out?