Answers for "set css background color to rgb value javascript"

0

javascript hex color to rgba

//If you write your own code, remember hex color shortcuts (eg., #fff, #000)

function hexToRgbA(hex){
    var c;
    if(/^#([A-Fa-f0-9]{3}){1,2}$/.test(hex)){
        c= hex.substring(1).split('');
        if(c.length== 3){
            c= [c[0], c[0], c[1], c[1], c[2], c[2]];
        }
        c= '0x'+c.join('');
        return 'rgba('+[(c>>16)&255, (c>>8)&255, c&255].join(',')+',1)';
    }
    throw new Error('Bad Hex');
}

hexToRgbA('#fbafff')

/*  returned value: (String)
rgba(251,175,255,1)
*/
Posted by: Guest on June-11-2021
0

javascript convert hex color to rgb

function rgbToHex(r, g, b) {
  return "#" + ((1 << 24) + (r << 16) + (g << 8) + b).toString(16).slice(1);
}

function hexToRgb(hex, result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex)) {
  return result ? result.map(i => parseInt(i, 16)).slice(1) : null
  //returns [23, 14, 45] -> reformat if needed
}

console.log(rgbToHex(10, 54, 120)); // #0a3678
console.log(hexToRgb("#0a3678")); // [10, 54, 120]
Posted by: Guest on April-06-2022

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