CMYK-RGB conversion using ISO Coated v2 300% (ECI)

Proposal

Create a mapping list for easy look-up and import into a database. Use steps of 5 for CMYK. For CMY use 0 to 100, i.e. 21*21*21 = 9261 variations. For K use 0 to 20, which covers all but one case in the lists at VBB public transport colors. That is 46305 variations.

Comparing two data sources

1 = http://www.codecrete.net/CMYK
2 = OSM Berlin/Sebastian [1]

C	M	Y	K	1	2
0	0	0	0	fefefe
100	0	0	0	00a2d3	00A3D3
0	100	0	0	e00885
100	100	0	0	3a2996
0	0	100	0	fae014	FBE116
100	0	100	0	00a659	00A759
0	100	100	0	bf1f10	DC2A1B
100	100	100	0	20211e
0	0	0	100	131413