The short version
- Find the single Hachiware whose ears do not match the rest of the row.
- You start with three lives, and a wrong pick or a timeout each costs one.
- Rounds pull from 45 traditional Japanese colors, with the CIEDE2000 gap shrinking from ΔE 14 to ΔE 1.
At a glance
| Where to play | Free in the browser on hachiware-iroate.pages.dev |
|---|---|
| Lives | 3; a miss or a timeout removes one |
| Palette | 45 traditional Japanese colors |
| Color gap | CIEDE2000, from ΔE 14 down to ΔE 1 |
| Category | Web Games |
| Creator / publisher | puts@puts |
| Official link | hachiware-iroate.pages.dev ↗ |
| Heat | 🔥 883.1K Heat |
| Announced | |
| Data updated |
One pair of ears does not match
ハチワレって200色おんねん
Hachiware Color Quiz, titled ハチワレ色あて on the game page, lines up a crowd of Hachiware and hides a single odd one among them. That one character has ears in a different color. Everything else on the screen is there to make that mismatch harder to trust.
puts built it on impulse and framed the joke with the line that Hachiware comes in 200 colors. The playable quiz itself draws each question from 45 traditional Japanese colors and labels the result with CIEDE2000, the standard way to measure how far apart two colors actually are. It is an unofficial fan game.
Three lives and a gap that collapses
You begin with three lives. Pick the wrong Hachiware and you lose one. Let the round time out and you lose one the same way. The run continues only while a life remains.
Each level adds more Hachiware and tightens the ear-color gap. The difference starts at ΔE 14, a split most people can still catch, and finishes at ΔE 1, a split the game itself calls nearly impossible to tell apart. Early rounds feel like a casual scan. Late rounds are a stare.
| Stage | What changes |
|---|---|
| Opening | Fewer Hachiware, color gap at ΔE 14 |
| Later levels | More Hachiware, smaller gaps |
| Final gap | ΔE 1, almost the same color |
Why your monitor is part of the puzzle
本気でやるなら全部切ってください
Screen brightness, Night Shift, and a blue-light filter all change how hard the same pair of ears looks. The game tells you straight: if you are playing seriously, turn all of them off. A warm night mode can swallow a ΔE that would still be visible on a neutral, bright display.
That is the satisfying part, and the funny one. You are not memorizing a pattern or beating a timer with faster clicks. You are arguing with your own eyes while a wall of nearly identical Hachiware waits. Compared with the usual odd-one-out browser game, the difficulty is the color math itself: more bodies in the row, then a measured gap that shrinks until matching ears and odd ears are almost the same paint.
- Kill the color shift
Turn off Night Shift and any blue-light cut before a run you care about.
- Set a plain brightness
The page warns that screen brightness changes the difficulty, so leave it steady.
- Slow down late
Once the gap is near ΔE 1, scanning faster just spends a life.
How to try it
Open the quiz and start
Go to hachiware-iroate.pages.dev and press はじめる. The round is the row of Hachiware in front of you.
Pick the odd ears
Find the one character whose ear color does not match the others. A wrong choice costs one of your three lives.
Beat the clock
A timeout costs a life too, so commit once you have a real candidate instead of waiting out the round.
Reset the screen for harder levels
Turn off Night Shift, blue-light filtering, and any odd brightness shift before you chase the late levels, where the gap falls toward ΔE 1.
FAQ
What does the shrinking ΔE number mean?
The quiz measures ear-color difference with CIEDE2000. It starts at ΔE 14 and tightens to ΔE 1, which the game describes as almost impossible to distinguish.
Is Hachiware Color Quiz an official release?
No. The page states that it is an unofficial fan game. puts made it and you can play it free in the browser.




