For more information including compatibility, examples and test cases, see https://github.com/petercrlane/r7rs-libs

0.1. NBS/ISCC Colour System: (import (slib nbs-iscc))

This library provides a mapping of colour names to colour values (as defined in (slib color)) based on the NBS/ISCC colour system. For more information see http://tx4.us/nbs-iscc.htm

Two functions are provided:

  1. nbs-iscc-names returns a list of all the names

  2. nbs-iscc returns the named colour 

sash[r7rs]> (length (nbs-iscc-names))
267
sash[r7rs]> (list-ref (nbs-iscc-names) 0)
"vivid yellowish green"
sash[r7rs]> (list-ref (nbs-iscc-names) 100)
"vivid purplish red"
sash[r7rs]> (nbs-iscc "vivid yellowish green")
#<<color> 0x2f629a0>
sash[r7rs]> (color->string (nbs-iscc "vivid yellowish green"))    ; <1>
"sRGB:39/166/76"
sash[r7rs]> (nbs-iscc (list-ref (nbs-iscc-names) 100))
#<<color> 0x226a900>
sash[r7rs]> (color->string (nbs-iscc (list-ref (nbs-iscc-names) 100)))
"sRGB:206/70/118"

  1. color→string is available from the (slib color) library