Skip to content

Instantly share code, notes, and snippets.

@bMinaise
Last active December 28, 2015 03:59
Show Gist options
  • Star 0 You must be signed in to star a gist
  • Fork 0 You must be signed in to fork a gist
  • Save bMinaise/7439041 to your computer and use it in GitHub Desktop.
Save bMinaise/7439041 to your computer and use it in GitHub Desktop.
HEX to RGBa - Script //source http://hex2rgba.devoth.com
<form>
<fieldset>
<legend>Convert your color:</legend>
<ol class="fieldsList column1">
<li>
<label for="f_hex_value">HEX value (e.g. #f00, #812dd3, ba3, F924A4, red)</label>
</li>
<li>
<input type="text" name="f_hex_value" value="" id="f_hex_value">
</li>
<li>
<p>Opacity: <span id="opacity">100%</span></p>
<div id="slider" class="ui-slider ui-slider-horizontal ui-widget ui-widget-content ui-corner-all"><a href="#" class="ui-slider-handle ui-state-default ui-corner-all" style="left: 100%;"></a></div>
</li>
<li class="buttons">
<button class="css3button green" id="calculate"><span>»</span> HEX 2 RGB(A) <span>»</span></button>
</li>
</ol>
<ol class="fieldsList column2">
<li>
<label for="f_r">RGB color values</label>
</li>
<li>
<label>R
<input type="text" name="f_r" value="" id="f_r" class="separate">
</label>
<label>G
<input type="text" name="f_g" value="" id="f_g" class="separate">
</label>
<label>B
<input type="text" name="f_b" value="" id="f_b" class="separate">
</label>
</li>
<li>
<label for="f_rgb_for_css">RGB for CSS</label>
<!-- <a id="copy_rgb">copy rgb</a> -->
</li>
<li>
<input type="text" name="f_rgb_for_css" value="" id="f_rgb_for_css">
</li>
<li>
<label for="f_rgba_for_css">RGBA for CSS</label>
<!-- <a id="copy_rgba">copy rgba</a> -->
</li>
<li>
<input type="text" name="f_rgba_for_css" value="" id="f_rgba_for_css">
</li>
</ol>
</fieldset>
</form>
// function below is not yet tested
// function getColorValue(color) {
// var t = document.createElement('div');
// t.style.display = 'none';
// t.style.color = color;
// document.body.appendChild(t);
//
// var style = window.getComputedStyle(t, null);
// var colorValue = style.getPropertyCSSValue('color').getRGBColorValue();
// document.body.removeChild(t);
//
// var hex = function(x) {
// return ('0' + parseInt(x, 10).toString(16)).slice(-2);
// }
//
// var hexString = '#';
// with(colorValue) {
// hexString += hex(red.cssText) + hex(green.cssText) + hex(blue.cssText);
// }
//
// return hexString;
// }
$(function () {
var opacity,
colors = {
"aliceblue": "#f0f8ff",
"antiquewhite": "#faebd7",
"aqua": "#00ffff",
"aquamarine": "#7fffd4",
"azure": "#f0ffff",
"beige": "#f5f5dc",
"bisque": "#ffe4c4",
"black": "#000000",
"blanchedalmond": "#ffebcd",
"blue": "#0000ff",
"blueviolet": "#8a2be2",
"brown": "#a52a2a",
"burlywood": "#deb887",
"cadetblue": "#5f9ea0",
"chartreuse": "#7fff00",
"chocolate": "#d2691e",
"coral": "#ff7f50",
"cornflowerblue": "#6495ed",
"cornsilk": "#fff8dc",
"crimson": "#dc143c",
"cyan": "#00ffff",
"darkblue": "#00008b",
"darkcyan": "#008b8b",
"darkgoldenrod": "#b8860b",
"darkgray": "#a9a9a9",
"darkgreen": "#006400",
"darkkhaki": "#bdb76b",
"darkmagenta": "#8b008b",
"darkolivegreen": "#556b2f",
"darkorange": "#ff8c00",
"darkorchid": "#9932cc",
"darkred": "#8b0000",
"darksalmon": "#e9967a",
"darkseagreen": "#8fbc8f",
"darkslateblue": "#483d8b",
"darkslategray": "#2f4f4f",
"darkturquoise": "#00ced1",
"darkviolet": "#9400d3",
"deeppink": "#ff1493",
"deepskyblue": "#00bfff",
"dimgray": "#696969",
"dodgerblue": "#1e90ff",
"firebrick": "#b22222",
"floralwhite": "#fffaf0",
"forestgreen": "#228b22",
"fuchsia": "#ff00ff",
"gainsboro": "#dcdcdc",
"ghostwhite": "#f8f8ff",
"gold": "#ffd700",
"goldenrod": "#daa520",
"gray": "#808080",
"green": "#008000",
"greenyellow": "#adff2f",
"honeydew": "#f0fff0",
"hotpink": "#ff69b4",
"indianred ": "#cd5c5c",
"indigo ": "#4b0082",
"ivory": "#fffff0",
"khaki": "#f0e68c",
"lavender": "#e6e6fa",
"lavenderblush": "#fff0f5",
"lawngreen": "#7cfc00",
"lemonchiffon": "#fffacd",
"lightblue": "#add8e6",
"lightcoral": "#f08080",
"lightcyan": "#e0ffff",
"lightgoldenrodyellow": "#fafad2",
"lightgrey": "#d3d3d3",
"lightgreen": "#90ee90",
"lightpink": "#ffb6c1",
"lightsalmon": "#ffa07a",
"lightseagreen": "#20b2aa",
"lightskyblue": "#87cefa",
"lightslategray": "#778899",
"lightsteelblue": "#b0c4de",
"lightyellow": "#ffffe0",
"lime": "#00ff00",
"limegreen": "#32cd32",
"linen": "#faf0e6",
"magenta": "#ff00ff",
"maroon": "#800000",
"mediumaquamarine": "#66cdaa",
"mediumblue": "#0000cd",
"mediumorchid": "#ba55d3",
"mediumpurple": "#9370d8",
"mediumseagreen": "#3cb371",
"mediumslateblue": "#7b68ee",
"mediumspringgreen": "#00fa9a",
"mediumturquoise": "#48d1cc",
"mediumvioletred": "#c71585",
"midnightblue": "#191970",
"mintcream": "#f5fffa",
"mistyrose": "#ffe4e1",
"moccasin": "#ffe4b5",
"navajowhite": "#ffdead",
"navy": "#000080",
"oldlace": "#fdf5e6",
"olive": "#808000",
"olivedrab": "#6b8e23",
"orange": "#ffa500",
"orangered": "#ff4500",
"orchid": "#da70d6",
"palegoldenrod": "#eee8aa",
"palegreen": "#98fb98",
"paleturquoise": "#afeeee",
"palevioletred": "#d87093",
"papayawhip": "#ffefd5",
"peachpuff": "#ffdab9",
"peru": "#cd853f",
"pink": "#ffc0cb",
"plum": "#dda0dd",
"powderblue": "#b0e0e6",
"purple": "#800080",
"red": "#ff0000",
"rosybrown": "#bc8f8f",
"royalblue": "#4169e1",
"saddlebrown": "#8b4513",
"salmon": "#fa8072",
"sandybrown": "#f4a460",
"seagreen": "#2e8b57",
"seashell": "#fff5ee",
"sienna": "#a0522d",
"silver": "#c0c0c0",
"skyblue": "#87ceeb",
"slateblue": "#6a5acd",
"slategray": "#708090",
"snow": "#fffafa",
"springgreen": "#00ff7f",
"steelblue": "#4682b4",
"tan": "#d2b48c",
"teal": "#008080",
"thistle": "#d8bfd8",
"tomato": "#ff6347",
"turquoise": "#40e0d0",
"violet": "#ee82ee",
"wheat": "#f5deb3",
"white": "#ffffff",
"whitesmoke": "#f5f5f5",
"yellow": "#ffff00",
"yellowgreen": "#9acd32"
},
r,
g,
b;
$('#slider').slider({
value: 100,
min: 0,
max: 100,
step: 1,
slide: function(event, ui) {
$('#opacity').text( ui.value + '%' );
// calculate_color_values(ui.value);
},
change: function(event, ui) {
// calculate_color_values(ui.value);
}
});
$('#opacity').text( $('#slider').slider("value") + '%' );
// focus on HEX field on page load
$('#f_hex_value').focus();
// select input content on click
$('#f_rgb_for_css, #f_rgba_for_css').click(function() {
this.select();
});
// function for calculating 6 letters hex value
function calculateFull(hex, opacity) {
var r = parseInt(hex.substring(0, 2), 16);
var g = parseInt(hex.substring(2, 4), 16);
var b = parseInt(hex.substring(4, 6), 16);
// set results
setResults( r, g, b, opacity );
return false;
}
// function for calculating 3 letters hex value
function calculatePartial(hex, opacity) {
var r = parseInt(hex.substring(0, 1) + hex.substring(0, 1), 16);
var g = parseInt(hex.substring(1, 2) + hex.substring(1, 2), 16);
var b = parseInt(hex.substring(2, 3) + hex.substring(2, 3), 16);
// set results
setResults( r, g, b, opacity );
return false;
}
function setResults ( r, g, b, opacity ) {
$('#f_r').val( r );
$('#f_g').val( g );
$('#f_b').val( b );
$('#f_rgb_for_css').val('rgb(' + r + ', ' + g + ', ' + b + ')');
$('#f_rgba_for_css').val('rgba(' + r + ', ' + g + ', ' + b + ', ' + opacity / 100 + ')');
}
// main function
function calculate_color_values (opacity) {
var sent_hex,
hex;
// get sent_hex value to lower case and remove spaces
sent_hex = $('#f_hex_value').val().toLowerCase().replace(' ', '');
// we are doing something with opacity slider
if (isNaN(opacity)) {
opacity = $('#slider').slider('value');
}
// if sent_hex is a proper color name (check: http://www.w3.org/TR/css3-color/#html4
// and http://www.w3.org/TR/css3-color/#svg-color for more info)
if (colors.hasOwnProperty(sent_hex)) {
// strip # from HEX
hex = colors[sent_hex].substr(1);
calculateFull(hex, opacity);
// if sent_hex is not a proper color name check if it is a proper hex value
// if not - give an error message
} else if (!sent_hex.match(/^#?([0-9A-Fa-f]){3}\s*$|^#?([0-9A-Fa-f]){6}\s*$/)) {
var msg = 'Invalid HEX value or color name';
$('.separate').val('');
$('#f_rgb_for_css').val(msg);
$('#f_rgba_for_css').val(msg);
return false;
// if sent_hex is a proper hex value calculate rgb and rgba
} else {
// strip # from HEX
hex = ( sent_hex.charAt(0) === "#" ? sent_hex.substr(1) : sent_hex );
// check if 6 letters are provided
if (hex.length === 6) {
calculateFull(hex, opacity);
} else if (hex.length === 3) {
calculatePartial(hex, opacity);
}
}
return false;
}
// call function on btn click
$('#calculate').click(calculate_color_values);
// set the 'copy to clipboard' buttons
// $('a#copy_rgb').zclip( {
// path: 'js/ZeroClipboard.swf',
// copy: function() {
// return $('#f_rgb_for_css').val();
// },
// afterCopy: function() {
// $(this).animate({opacity:0.5}, 200, function() {
// $(this).animate({opacity:1}, 150);
// });
// }
// });
//
// $('a#copy_rgba').zclip( {
// path: 'js/ZeroClipboard.swf',
// copy: function() {
// return $('#f_rgba_for_css').val();
// },
// afterCopy: function() {
// $(this).animate({opacity:0.5}, 200, function() {
// $(this).animate({opacity:1}, 150);
// });
// }
// });
});
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment