So deep it seems darker than black

there are two types of nibs

Pigment Classification: MixtureColor Index Name: PW6:1 / PW6 / PY42 / PY83(HR70)Color Index Number: 77891 / 77492 / 21108Chemical Description: Titanium Dioxide Rutile / Synthetic Hydrated Iron Oxide / Diarylide Yellow HR70Opacity/Transparency: Semi-OpaqueLightfastness Rating: 1Permanency: ExcellentMunsell Notation Listing: Hue 10

this color is highly regarded for its opacity and intensity

Naples Yellow will make you think of late Summer with it's sunflowers

pitt pastel farveblyant 176 van dyck brown E50 So deep it seems darkerPitt pastel colored pencils in high quality Unmatched lightfastness and colour brilliance Grease and oil free Ideal for fine details To be sharpened with sharpening knife 181398, sharpening machine 180963 or 181463 Available in 60 individual colours or in different assorted sets Wood from certified and sustainable forestry Environmentally friendly and water based varnish