Naphthol red deep (399) is a semi-opaque colour with a very good lightfastness (++)

you get a little piece of Stelling's history with the purchase

Canson® XL® Croquis is printed on lightweight

Pigment Classification: Synthetic InorganicColor Index Name: PR108Color Index Number: 77202Chemical Description: Concentrated Cadmium SulfoselenideOpacity/Transparency: OpaqueLightfastness Rating: 1Permanency: Not for Exterior UseMunsell Notation Listing: Hue 4

Hydrous Chromium SesquioxideLightfastness: ASTM II - GoodOpacity: Semi-OpaqueGrind: Very Fine

old holland oliemaling old holland cold grey Size:40 ml Naphthol red deep (399) isColour name: Old Holland Cold Grey Colour number: 364 Series: A Pigment classification: Zinc oxide Titanium dioxide synthetic ultramarine Carbon black Available: in 40 ml Colour index: PW4 PW6 PB29 PBL7 Colour index number: 77947 77891 77007 77266 Lightfastness: Lightfast pigment according to ASTM category 1 and 2 Opacity transparency: Opaque