11 lines
322 B
Markdown
11 lines
322 B
Markdown
### RGB to hexadecimal
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Convert each value to a hexadecimal string, using `toString(16)`, then `padStart(2,'0')` to get a 2-digit hexadecimal value.
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Combine values using `join('')`.
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```js
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const rgbToHex = (r, g, b) =>
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[r,g,b].map( v => v.toString(16).padStart(2,'0')).join('');
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// rgbToHex(0, 127, 255) -> '007fff'
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```
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