Intense Blue (Phthalo Blue) is a deep intense blue which when undiluted, forms an inky blue-black. It is made from the modern pigment Phthalocyanine which was introduced in the 1930s. Our popular Cotman Water Colours come in 40 colours. They are affordable but uncompromising on quality with excellent tinting strength. Available individually or in our water colour sets.
Intense Blue (Phthalo Blue) is a deep intense blue which when undiluted, forms an inky blue-black. It is made from the modern pigment Phthalocyanine which was introduced in the 1930s. Our popular Cotman Water Colours come in 40 colours. They are affordable but uncompromising on quality with excellent tinting strength. Available individually or in our water colour sets.
in 38 offers
Intense Blue (Phthalo Blue) is a deep intense blue which when undiluted, forms an inky blue-black. It is made from the modern pigment Phthalocyanine which was introduced in the 1930s. Our popular Cotman Water Colours come in 40 colours. They are affordable but uncompromising on quality with excellent tinting strength. Available individually or in our water colour sets.
Intense Blue (Phthalo Blue) is a deep intense blue which when undiluted, forms an inky blue-black. It is made from the modern pigment Phthalocyanine which was introduced in the 1930s. Our popular Cotman Water Colours come in 40 colours. They are affordable but uncompromising on quality with excellent tinting strength. Available individually or in our water colour sets.
Last updated at 23/10/2025 13:47:18
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Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
originally posted on michaels.com
originally posted on michaels.com
originally posted on dickblick.com
| Application | Water Colour Painting |
| Colour Range | 40 Colours |
See 15 more history offers
| Application | Water Colour Painting |
| Colour Range | 40 Colours |
