An RGB triple does not describe a color unambiguously: it depends on the device used to display it. Devices have different red, green and blue light sources.

An RGB triple does not describe a color unambiguously: it depends on the device used to display it. Devices have different red, green and blue light sources. I know it sounds like nitpicking, but we are talking about subtle differences in shades of beige, after all. An LCD display will have a white backlight, with some distribution of wavelengths, and each pixel has filters that pass a certain band of wavelengths (one band each for red, one for green, one blue). Different LCDs will use different backlights, with different filters. An OLED will have a three kinds of emitters, each with its own distribution of wavelengths. CRTs used to have three kind of phosphors that glowed with their own characteristic colors. Now, if you could give us the CIE XYZ coordinates of the color, or the CIELAB coordinates, that would be very helpful. They are device-independent.