Boku-Undo Sumi Ink Watercolor Paints — Bright Colors (6 Colors)

Boku-Undo Sumi Ink Watercolor Paints in Bright Colors is a six-pan Japanese watercolor set built on traditional sumi ink, made in Nara by a sumi manufacturer founded in 1805. Where the Shadow Black set in the same line stays near black, this palette lets the underlying pigments come forward as muted, dusty versions of pink, yellow, green, blue, purple, and vermilion.

The set holds six dry pans: Shadow Pink, Shadow Yellow, Shadow Green, Shadow Blue, Shadow Purple, and Shadow Vermilion. Even at full strength, each color carries a quiet sumi grey at its core, giving the palette a smoky, atmospheric quality that ordinary watercolors do not reach.

The pans combine traditional sumi soot with colored pigments and gum arabic, behaving like a modern watercolor while keeping the depth and matte finish of classical sumi ink. Each color in this set carries the sumi grey as a base layer that the colored pigments sit on top of, which is why even Shadow Pink reads moodier than a standard watercolor pink. Diluted with water, the colors release into soft tinted washes that keep that sumi backbone.

Boku-Undo has been making sumi in Nara since 1805, and the Bright Colors set is the line's middle path: enough color to move beyond pure monochrome, but with the smoky sumi character that distinguishes the whole Sumi Ink Watercolor series from ordinary pan watercolor. It suits painters who want recognizable color without leaving the world of ink behind.

For a darker and a softer take on the same idea, see the Shadow Black and Pastel Colors sets in this series. The pans pair naturally with the Akashiya Sai Water Brush Pen for travel sketching, or browse more Japanese arts & crafts supplies.

How to Use

1. Wet a brush with clean water.
2. Touch the brush to a pan to load color. A quick dip gives a soft tinted wash; a few seconds builds saturation toward a deep muted hue.
3. Paint directly on paper, or mix two pans in a separate dish for in-between tones.
4. Rinse the brush between colors. The pans rewet cleanly even after months of sitting closed.

Details

• Set contents: 6 dry watercolor pans (Shadow Pink, Shadow Yellow, Shadow Green, Shadow Blue, Shadow Purple, Shadow Vermilion)
• Size: 7" × 2.6" × 0.6" (17.8 cm × 6.6 cm × 1.5 cm)
• Weight: 2.9 oz (82 g)
• Materials: pigments, sumi soot
• Origin: Made in Nara, Japan
• Brand: Boku-Undo

The Story of Boku-Undo

Founded in 1805 in Nara, a city that has produced Japanese ink for roughly thirteen hundred years, Boku-Undo has spent more than two centuries refining sumi for calligraphers, painters, and schools. The workshop still produces traditional ink sticks that are ground by hand on inkstones, but it also experiments steadily at the edges of that tradition: liquid sumi for brush painting, gansai-style watercolors, and these pan watercolors that translate the depth of soot into a format closer to a sketchbook.

What stays constant across every Boku-Undo product is the company's relationship with carbon. Sumi at its best is not simply black; it carries temperature, weight, and a settled quality that lets a single brushstroke read as both shadow and atmosphere. The Sumi Ink Watercolor line is Boku-Undo's modern attempt to carry that quality into a portable, color-aware format.