Permanent Green Light Pigment Classification: Mixture Chemical Description: Arylide Yellow / Chlorinated Copper Phthalocynine Opacity/Transparency: 3 Lightfastness Rating: II Permanency: Very Good Colour Index Name: PY 3 / PG 7 Colour Index Number: 11710 / 74260 Munsell Notation Listing: Hue: 4.0 G Value: 3.75 Chroma: 12.0 Pantone Matching System: 348 Spectrophotometer Readings: N/A Viscosity Range: 19000-23000 CPS PH Range: 8.3-9.0 Gloss Average: 80.05 CIE L*a*b* Values: L*43.54 a*-46.94 b*17.96 Tint Strength: NA