
ColorBlindness Client
Client side post effects that simulate color blindness
Screenshots






About this Mod
ColorBlindness Client
ColorBlindness Client is a Minecraft mod (Forge, NeoForge, Fabric, Quilt) that provides color blindness post effects which can be enabled by key bindings or chat commands.
This mod is compatible with Optifine & shaders!
The Fabric / Quilt version needs the following mods:
- Fabric API (Github, Curseforge, Modrinth)
Effects
- Achromatomaly: Color weakness
- Achromatopsia: Color blindness
- Deuteranomaly: Green weakness
- Deuteranopia: Green blindness
- Protanomaly: Red weakness
- Protanopia: Red blindness
- Tritanomaly: Blue weakness
- Tritanopia: Blue blindness
In-game usage
You can define a key in the vanilla Keybinding menu for each colorblindness effect which can toggle the effect.
OR
Type the following line to enable you the Achromatopsia effect.
/cb achromatopsia
And the following command can clear the effect.
/cb clear
Sponsors
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FAQ
Can I use this mod in my mod pack?
Yes, you are allowed to use this mod in your mod packs
Port to another Minecraft version? Which versions are supported?
Sorry, but I do not backport any mod to an older version. Here is a list of all supported and planned versions: Minecraft mod versions of cech12
I found a bug or I have a good idea to enhance this mod!
Very good! Open an issue at Github or contact me on Discord.
Available Versions
How to Install ColorBlindness Client on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (26.1.2).
Install Mod
Open the mod browser in the dashboard and search for "ColorBlindness Client". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
26.1.2, 26.1.1, 26.1 (+7 more)
Server-side
✗ UnsupportedRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
ColorBlindness Client server crashes on startup – what to do?
Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (26.1.2). You can switch loaders with one click in the panel.
Is ColorBlindness Client compatible with fabric and forge and neoforge and quilt?
ColorBlindness Client officially supports fabric, forge, neoforge, quilt for Minecraft 26.1.2, 26.1.1, 26.1. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with ColorBlindness Client – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if ColorBlindness Client consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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Rent Modded Server
Install ColorBlindness Client with just one click on your server.