13 · No hue
Pyrite FeS₂
brass yellow, metallic → greenish black
#3a413c · L* 26.7 · C* 4.8 · no hue
Dowlas Gill · 5 April 2024
The key · sector
No hue
Chroma below 8. These powders have a lightness and no hue; a hue angle computed from them would be noise. They leave the circle and order by lightness instead.
4 of 15 · no hue range
12 · No hue
Galena PbS
lead grey, metallic → lead grey
#898987 · L* 57.1 · C* 1.2 · no hue
Ladgill Level · 17 May 2024
14 · No hue
Magnetite Fe₃O₄
black, metallic → black
#3c3c3c · L* 25.5 · C* 0.0 · no hue
Tarnbeck Hush · 23 July 2025
11 · No hue
Rhodochrosite MnCO₃
rose pink, banded → white
#c9c2b8 · L* 78.8 · C* 5.8 · no hue
Coldbank Rake · 8 February 2026
Other sectors