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Can you help me convert from a Munsell color specification to a RAL color specification?

April 26, 2017color convert help Munsell RAL specification

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Can you help me convert from a Munsell color specification to a RAL color specification?

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Thanks for your inquiry. I am personally not that familiar with the RAL specification, but I found these links: paintcenter.org/rj/oct04hh.cfm, and ” style=”color:#0000aa”>paintcenter.org/rj/apr05a.cfm that suggest that one type of RAL designation is directly related to CIELAB specifications expressed in terms of h,L*,C* (in that order). There is free software from GretagMacbeth to convert between Munsell and CIELAB designations. It appears that you only need to convert the L*a*b* values from the GretagMacbeth program to L*C*h (a rectangular to cylindrical coordinate conversion that can be found in any book on colorimetry) and then round them to integers to convert to RAL specifications.