EN
JavaScript - convert RGB color to HEX color
6 points
In this short article, we would like to show how to convert RGB color to HEX color using JavaScript.
Quick solution:
xxxxxxxxxx1
const toString = (component) => {2
if (component > -1 && component < 256) {3
const text = component.toString(16);4
return text.length < 2 ? '0' + text : text;5
}6
throw new Error('Incorrect color component value.');7
}8
9
const toHex = (r, g, b) => toString(r) + toString(g) + toString(b);10
11
12
// Usage example:13
14
// r g b hex color15
console.log(toHex( 0, 0, 0)); // 00000016
console.log(toHex(255, 255, 255)); // ffffff17
console.log(toHex(255, 0, 0)); // ff000018
console.log(toHex( 0, 255, 0)); // 00ff0019
console.log(toHex( 0, 0, 255)); // 0000ff
