Voidcolor is a Node.js package created for simulating various color blindness types.

Usage:

Install package

npm install --save voidcolor

Import package

const voidcolor = require('voidcolor');

Anopia
Simulate complete color blindness

let r = 255, g = 50, b = 0;

voidcolor.deuteranopia(r, g, b);
voidcolor.protanopia(r, g, b);
voidcolor.tritanopia(r, g, b);
voidcolor.achromatopsia(r, g, b);

Anomaly
Simulate partial color blindness
0 - normal vision, 1 - complete color blindness

let r = 255, g = 50, b = 0;
let severity = 0.5;

voidcolor.deuteranomaly(r, g, b, severity);
voidcolor.protanomaly(r, g, b, severity);
voidcolor.tritanomaly(r, g, b, severity);

Note: the return is always {r, g, b} object

Example code

const voidcolor = require('voidcolor');

const color = voidcolor.deuteranopia(230, 10, 10);

console.log(color.r);
console.log(color.g);
console.log(color.b);

Colors generated using voidcolor
Anomaly severity set at 50%