Pigment Comparison
Cobalt Blue Deep vs Phthalocyanine Blue Lake
Choose any two products — oil colours, watercolours, mediums or primers — to see a concise comparison of how they differ and what they share, alongside the full specification table.
Product A
Cobalt Blue Deep
W412
Product B
Phthalocyanine Blue Lake
W137
How they compare
Cobalt Blue Deep and Phthalocyanine Blue Lake are both Michael Harding watercolours.
Cobalt Blue Deep uses PB74; Phthalocyanine Blue Lake uses PB15.3.
They differ in transparency, staining and tinting strength.
They share matching lightfastness, granulation and vegan status.
| Property | Cobalt Blue Deep | Phthalocyanine Blue Lake |
|---|---|---|
| Pigment Index | PB74 | PB15.3 |
| Lightfastness | Excellent | Excellent |
| Granulation | YES | YES |
| Staining | Medium | High |
| Transparency | Semi-Transparent | Transparent |
| Tinting Power | 3 | 4 |
| Series | Series 4 | Series 1 |
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Colour Disclaimer: Colours shown on screen or in print may vary from the actual product. For the most accurate representation of colour, texture and finish, we recommend viewing a physical sample or swatch in person before making your final selection.