Phthalo Blue (Red Shade) – Professional Handmade Watercolour

Swatch Painted On: Saunders Waterford, White, Rough, 100% Cotton, Mould Made, Acid-Free, 300 gsm Watercolour Paper

Also Known As: Phthalocyanine Blue RS, Transparent Blue, Winsor Blue RS

Discover how we make our Finest Professional Watercolours

Description

Phthalo Blue (Red Shade) is a bold and brilliant watercolour pigment, celebrated for its intense, warm-leaning blue tone and outstanding versatility. Crafted with pure Phthalocyanine Blue (P.B. 15:1), this colour leans slightly towards red compared to cooler blues, making it ideal for vibrant skies, luminous waters, and richly saturated shadows.

This professional-quality pigment offers high tinting strength and excellent transparency, making it an excellent choice for layering, glazing, and creating glowing, fluid washes. When used at full concentration, it delivers a striking, deep blue with commanding presence; when diluted, it transitions into light, airy blues with subtle warmth—perfect for atmospheric gradients, oceanic effects, and airy skies.

Phthalo Blue (Red Shade) is a high staining pigment that binds firmly to the paper and maintains brilliance over time. With an AAA lightfastness rating, it guarantees long-lasting results, resisting fading even in high-exposure artworks. This non-granulating pigment mixes beautifully with a wide range of other colours—pair with yellows for vivid greens or with reds for muted purples and natural greys. It’s a go-to blue for any artist building a reliable, expressive watercolour palette.

We Recommend

Using distilled water with all our watercolours to preserve pigment purity and avoid unwanted chemical interference.

If you have any questions, we’re always happy to help—just send us a message!

Our handmade watercolours are perfect for artists of all levels, from passionate beginners to seasoned professionals who value premium-quality, artisan-crafted materials.

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