processing tool for QGIS is available.
munsellrgb accepts munsell code and converts it into sRGB:
Conversion is made using Colour, an open-source Python package.
One possible application of this tool is the representation of soil colors described using the Munsell Soil Color Chart in a quasi-realistic way.
RGB values can be utilized not only in QGIS but also in any graphical program to accurately color each soil layer to closely match the colors documented in the field.
Example of fictional archaeological cross section, using common munsell soil color codes
