Hansa Yellow Medium Pigment Classification: Organic Synthetic Chemical Description: Arylide Yellow Opacity/Transparency: 7 Lightfastness Rating: I Permanency: Excellent Colour Index Name: PY 73 Colour Index Number: 11738 Munsell Notation Listing: Hue 2.0 Y Value 7.75 Chroma 16.8 Pantone Matching System: PMS 123 Spectrophotometer Readings: N/A Viscosity Range: 23000-27000 CPS PH Range: 8.3-9.0 Gloss Average: 82.51 CIE L*a*b* Values: L*78.51 a*18.46 b*89.29 Tint Strength: 94.00