An intensely opaque

Primary Yellow can be a semi-transparent

Classic ruby or cherry red

Raw Sienna retains more of its yellowish color because is created prior to the heating process that creates "burnt" sienna

Pigment Classification: MixtureColor Index Name: PR101 / PBk7Color Index Number: 77491 / 77266Chemical Description: Synthetic Iron Oxide / Nearly Pure Amorphous CarbonOpacity/Transparency: Semi-OpaqueLightfastness Rating: 1Permanency: ExcellentMunsell Notation Listing: Hue 5

old holland oliemaling cadmium red light Interference Orange (Fine) An intensely opaqueColour name: Cadmium Red Light Colour number: 21 Series: E Pigment classification: Cadmiumseleno sulphide Available: in 40 ml Colour index: PR108 Colour index number: 77202 Lightfastness: Lightfast pigment according to ASTM category 1 and 2 Opacity transparency: Opaque