One pen. No color choices. No perfectionism. Just twenty minutes of quiet for a mind that never stops. One color coloring books for everyone.
One Color Coloring Books®
Bold designs you fill with a single pen. No palette to choose, no page you can get wrong. Four editions, one quiet evening at a time.
See the editions
Start hereOne Color Coloring Book, Original Edition
Where it all started. Botanicals, cozy rooms and quote pages.
$24.90$39.90

One Color Coloring Book, New Chapter Edition
The second book. All-new pages for when the first one is full.
$24.90$39.90
NewOne Color Coloring Book, Cats Special Edition
For cat people, and the ones who buy them gifts.
$24.90$39.90
NewOne Color Coloring Book, Dogs Special Edition
Fifty dogs, from sleepy to very good.
$24.90$39.90
Real pages, before and after





Less to decide, more to finish



What readers say

Love love love this book
"It stops me from endlessly scrolling on my phone, I can just chill and forget about everything."
Roo · VerifiedThe best colouring book ever
"I have tried several others with colours and given up but I am already halfway through this one."
Julie M. · VerifiedI love making no decisions!
"Just use black, colour the places indicated! The result is a professional looking print. Very relaxing."
Debbie · VerifiedThese books are amazing
"Such great quality, thick paper, and lovely illustrations! My mind has never felt so calm, my nightly ritual."
Bianca R. · VerifiedIt's perfect
"From the feel of the paper to the spiral binding. I take it literally everywhere!"
Victoria · VerifiedProblem solved
"One colour for everything solves the what colour problem I always had before. So calming for my AuDHD brain."
Karen · VerifiedMade for this paper

"If you're not sure, start with the Original and one set of pens. One page tonight is plenty."
Caroline, founderFrequently asked questions
Is one color really enough?
Yes. Removing color decisions is precisely what makes the format restful. Most readers use plain black ink.
What pens work best?
Any water-based marker or brush pen. Our dual-tip pens are tuned for the 160gsm paper: full coverage, no bleed-through, no ghosting.
Is a one color coloring book good for anxiety or ADHD?
Many readers pick it precisely for that: fewer decisions means less friction to start and an easier time staying with the page. Read why one color works for ADHD brains.
Will markers bleed through the paper?
No. Every page is 160gsm, single-sided-friendly paper: brush pens and water-based markers stay on the page, with no ghosting on the back.
Can I give it as a gift?
It is one of our most gifted items: the black cover, the spiral and the one-pen idea make it an easy present for an overthinker. See our stress-relief gift guide.
How long does a page take?
Most pages take one quiet evening, not a month. Big shapes fill fast, which is why these books actually get finished.
One color coloring books strip the hobby down to what actually calms you: bold black designs, a single pen, and zero decisions. No 72-pencil palette to manage, no color theory, no planning. You pick one color for the page and let your mind go quiet. Also known as monochrome coloring books, they are printed on thick 160gsm no-bleed paper and finished with a lies-flat spiral.
Whether you searched for a single color coloring book, a monochrome colouring book or a one colour colouring book, it is the same idea: one pen, one page, no palette. It is the format 10,000+ overthinkers use for 20 quiet minutes a night, and every book ships free with a 60-day money-back guarantee.
Which one color coloring book should you start with?
The Original Edition is the one to begin with: 50+ hand-drawn scenes and quote pages with big, bold shapes you can finish in an evening. Already colored it cover to cover? The New Chapter Edition continues the ritual with all-new pages built around fresh starts. Both pair with our dual-tip brush pens: a broad end that fills big shapes fast and a fine tip for clean edges.
Rather color animals? The Cats Special Edition and the Dogs Special Edition each hold 50 one color designs on the same thick 160gsm paper and lies-flat spiral, and they are the editions readers most often buy as a gift for a cat or dog lover.
What makes a one color coloring book different
Your brain makes about 35,000 decisions a day. A traditional coloring book adds dozens more per page. A one color coloring book removes the choice entirely, which is why so many overthinkers find it easier to stick with. Every page is printed on thick 160gsm paper, so markers and brush pens will not bleed through, and the metal spiral lets the book lie flat while you fill. Curious about the idea behind it? Read what monochrome coloring is and why paper weight matters.
Which One Color Coloring Book® is for you?
Original Edition. Where it all started: 50+ bold designs (botanicals, objects and typography) printed on 160gsm paper with a metal spiral. The right first book.
New Chapter Edition®. The second book. New designs built around fresh starts and closing chapters, same one-pen calm, same no-bleed paper. For finishers of the Original, or gifters.
Dual Tip Brush Pens. The companion set: brush side fills bold shapes fast, fine tip catches the edges. Rich black ink, tested on our paper.
Why one color changes everything
A classic adult coloring book hands you a decision every few seconds: which pencil, which section, do these shades work together. That decision load is exactly what an overthinking mind doesn't need at 9pm. Our one color coloring books remove it entirely: every page is a set of bold black designs made to be filled with a single pen, so the only thing left to do is the calming part.
Every edition is printed on premium 160gsm paper, roughly twice the weight of a standard coloring book, so brush pens and markers never bleed through. The metal spiral means the book lies flat on your lap, on the sofa, in bed. Details matter when the whole point is friction-free calm.
New to the idea? Start with our guides to what monochrome coloring is and building a cozy 20-minute evening ritual, or grab the free printable pages and try the one-pen feeling before you buy.


