Prussian Blue is the deep, cool blue in our Stone watercolor line.
Known for its rich, atmospheric character, Prussian Blue creates dramatic washes, strong blue‑green transitions, and expressive evening tones. As the deepest blue in the Stone palette, it adds weight, depth, and shadow to watercolor work while remaining beautifully transparent and responsive in the brush.
Prussian Blue is ideal for early‑grade watercolor painting, seasonal stories, and lessons that explore tone, contrast, and mood. It mixes cleanly with both warm and cool yellows to create strong blue‑greens, and pairs beautifully with Ultramarine Blue or Phthalo Blue to deepen blues into powerful shadow tones. Its cool clarity supports structured main lesson painting while offering enough expressive range for more advanced work.
Produced in the USA using high‑quality pigments and a clean, reliable liquid base, Stone Watercolor Paint is designed specifically for Waldorf watercolor painting. The formula is extremely concentrated, allowing teachers and students to adjust the strength of the color with simple dilution. For general painting, we recommend 10 parts water to 1 part paint. For veil painting, use more water and allow layers to dry between washes. For richer, more saturated color, simply reduce the amount of water.
Prussian Blue offers smooth transparency, excellent flow, and a deep cool tone across all watercolor techniques used in Waldorf classrooms. Its strength makes it a favorite for landscapes, dramatic skies, and any work requiring depth, contrast, or a sense of evening light.
Color Mixing with Prussian Blue
- Prussian Blue + Ultramarine Blue — Deep cool blues and strong evening shadow tones.
- Prussian Blue + Phthalo Blue — Strong blue‑green shadows and vivid cool depth.
- Prussian Blue + Lemon Yellow — Clear, cool blue‑greens and crisp green transitions.
- Prussian Blue + Golden Yellow — Natural blue‑greens and muted forest tones.
- Prussian Blue + Vermillion — Deep muted purples and earthy shadow violets.
- Prussian Blue + Carmine Red — Rich purples and cool violet tones.
- Prussian Blue + Red Rose — Soft cool violets and gentle evening purples.
- Prussian Blue + True Red — Deep purples and balanced cool violet hues.
- Prussian Blue + Viridian Green — Strong blue‑greens and deep aquatic tones.
- Prussian Blue + Black Gouache — Dramatic navy blues and powerful shadow tones.
- Prussian Blue + White Gouache — Soft steel blues and gentle cool tints (upper‑grade use).
Non‑Toxic – Conforms to ASTM D‑4236.
Sizes
Prussian Blue — 1 oz (28.4 ml) SPB1 — $9.95
Prussian Blue — 4 oz (113.6 ml) SPB4 — $27.95
Prussian Blue — 8 oz (227.3 ml) SPB8 — $45.95
