colour terminology

For specific colour terms, the place structure is "x1 is foo coloured". There are no exceptions.

Basic colours:

• black (or very dark): {jvsv xekri}
• grey: {jvsv grusi}
• white (or very light): {jvsv blabi}
• red: {jvsv xunre}
• orange: {jvsv narju}
• brown: {jvsv bunre}
• yellow: {jvsv pelxu}
• green: {jvsv crino}
• cyan: {jvsv cicna}
• blue: {jvsv blanu}
• purple: {jvsv zirpu}
• magenta: {jvsv nukni}

The six basic colours {jvsv xunre}, {jvsv pelxu}, {jvsv crino}, {jvsv cicna}, {jvsv blanu}, and {jvsv nukni} could be understood to divide up the (circular) hue range into six segments. {jvsv narju} and {jvsv zirpu} are perhaps additional segments overlapping these? Or are they non-overlapping? {jvsv bunre} seems to depend on saturation and brightness for its definition. Can someone comment on this? Is there an official mapping between these words and the colour cylinder? Someone has produced a list of representative colours.