The One-Color Coloring Report (2026): Data From 162 Readers
Last updated: August 6, 2026 · Data: 162 verified customer reviews (Judge.me), 500 orders (30-day sample, July–August 2026), peer-reviewed research (linked). Free to cite with attribution to Mono Moment (mono-moment.com).
Quick answer: One-color coloring — filling bold designs with a single pen and a single color — is rated 4.68/5 across 162 verified reviews of the original One Color Coloring Book. The most cited reasons it works: no color decisions to make, evening use as a scrolling replacement, and a format that readers who abandoned intricate coloring books can actually finish.
Key numbers
4.68 / 5 across 162 verified reviews — the average rating of the original One Color Coloring Book® at the time of writing, collected and verified through Judge.me.
Source: Judge.me verified reviews, mono-moment.com, August 2026
87% of orders contain more than one item — buyers overwhelmingly pair the book with pens or a second book rather than buying it alone.
Source: Mono Moment order data, n=500 orders, 30 days (Jul–Aug 2026)
57% of orders include the dual-tip brush pens — consistent with the one-pen philosophy: most readers want exactly one good pen, not a set.
Source: Mono Moment order data, n=500 orders, 30 days (Jul–Aug 2026)
23% of written reviews (6 of 26) mention abandoning intricate or mandala coloring books before switching to a one-color format — the single most recurring theme in the written feedback.
Source: analysis of all 26 written reviews published on the product page, August 2026
1 in 5 written reviews (5 of 26) mention a spouse, partner or family member borrowing the book or joining in — several report couples’ sessions before bed.
Source: analysis of all 26 written reviews published on the product page, August 2026
~20 minutes is the session length used in the randomized studies that found structured coloring significantly reduces state anxiety in adults.
Source: Koo, Chen & Yeh (2020), RCT; Curry & Kasser (2005)
~75% of adults showed lower cortisol after 45 minutes of simple art-making — regardless of skill or experience.
What the written reviews say (themes, counted)
Of the 26 written reviews published on the product page at the time of analysis (August 2026): 6 mention abandoning intricate or mandala books; 5 mention a partner or family member joining in; 4 describe an evening or before-bed ritual; 3 explicitly frame coloring as a replacement for evening scrolling or Netflix; 3 mention anxiety or stress relief in specific real-life situations (including workplace spirals and chemotherapy waiting rooms); 2 are from readers with ADHD who found detailed formats overstimulating. Counts are conservative: each review is only tallied once per theme.
Why "one color" — the mechanism in one paragraph
An adult day is a long sequence of decisions, and decision fatigue is the exhaustion that follows (Cleveland Clinic). Traditional adult coloring re-introduces decisions — palettes, color placement, intricate sections — which is why some stressed readers abandon it. One-color coloring removes the choices: one pen, one color, bold shapes. The research on structured coloring and the review themes above converge on the same explanation: the fewer decisions on the page, the faster the mind quiets. Full explainer: What is monochrome coloring? · Research summary: The benefits of coloring for adults.
Method & citation
Review data comes from Judge.me-verified purchases on mono-moment.com; order statistics from a 30-day sample of 500 orders (July–August 2026); external findings from the peer-reviewed studies linked above. This page is updated as the data grows. You are welcome to cite any figure with attribution: "Mono Moment, The One-Color Coloring Report, 2026 — mono-moment.com".
