diff --git a/.gitignore b/.gitignore
new file mode 100644
index 00000000..f7046f6a
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,12 @@
+/.buildpath
+/.cache
+/.metadata
+/.project
+/.settings
+atlassian*
+/nbproject
+/sitemap
+/sitemap.xml
+/.idea
+/.gitattributes
+/.grunt
\ No newline at end of file
diff --git a/composer.json b/composer.json
index b970db75..00064114 100644
--- a/composer.json
+++ b/composer.json
@@ -1,5 +1,5 @@
 {
-    "name": "sabberworm/php-css-parser",
+    "name": "studioraz/php-css-parser",
     "type": "library",
     "description": "Parser for CSS Files written in PHP",
     "keywords": ["parser", "css", "stylesheet"],
diff --git a/lib/Sabberworm/CSS/Parser.php b/lib/Sabberworm/CSS/Parser.php
index 409b796d..e9e2ace3 100644
--- a/lib/Sabberworm/CSS/Parser.php
+++ b/lib/Sabberworm/CSS/Parser.php
@@ -200,6 +200,27 @@ private function parseAtRule() {
 		}
 	}
 
+	private function parseCalcHack(){
+
+		$sResult = null;
+		$sContent = null;
+
+		while (true) {
+			$sContent = $this->parseCharacter(false);
+
+			if ($sContent == ';') {
+				$this->iCurrentPosition--;
+				break;
+			}
+			if ($sContent === null) {
+				throw new SourceException("Non-well-formed quoted string {$this->peek(3)}", $this->iLineNo);
+			}
+			$sResult .= $sContent;
+		}
+
+		return $sResult;
+	}
+
 	private function parseIdentifier($bAllowFunctions = true, $bIgnoreCase = true) {
 		$sResult = $this->parseCharacter(true);
 		if ($sResult === null) {
@@ -438,6 +459,8 @@ private function parsePrimitiveValue() {
 			$oValue = $this->parseStringValue();
 		} else if ($this->comes("progid:") && $this->oParserSettings->bLenientParsing) {
 			$oValue = $this->parseMicrosoftFilter();
+		} else if ($this->comes("calc")) {
+			$oValue = $this->parseCalcHack();
 		} else {
 			$oValue = $this->parseIdentifier(true, false);
 		}
@@ -476,9 +499,17 @@ private function parseColorValue() {
 		if ($this->comes('#')) {
 			$this->consume('#');
 			$sValue = $this->parseIdentifier(false);
+
+
 			if ($this->strlen($sValue) === 3) {
 				$sValue = $sValue[0] . $sValue[0] . $sValue[1] . $sValue[1] . $sValue[2] . $sValue[2];
 			}
+
+			if ($this->isColorName($sValue)) {
+                $sValue = $this->resolveColor($sValue);
+            }
+
+
 			$aColor = array('r' => new Size(intval($sValue[0] . $sValue[1], 16), null, true, $this->iLineNo), 'g' => new Size(intval($sValue[2] . $sValue[3], 16), null, true, $this->iLineNo), 'b' => new Size(intval($sValue[4] . $sValue[5], 16), null, true, $this->iLineNo));
 		} else {
 			$sColorMode = $this->parseIdentifier(false);
@@ -724,4 +755,173 @@ private function strpos($sString, $sNeedle, $iOffset) {
 		}
 	}
 
+	private function getColorNameList() {
+
+	    return [
+            'black' => '000000',
+            'navy' => '000080',
+            'darkblue' => '00008b',
+            'mediumblue' => '0000cd',
+            'blue' => '0000ff',
+            'darkgreen' => '006400',
+            'green' => '008000',
+            'teal' => '008080',
+            'darkcyan' => '008b8b',
+            'deepskyblue' => '00bfff',
+            'darkturquoise' => '00ced1',
+            'mediumspringgreen' => '00fa9a',
+            'lime' => '00ff00',
+            'springgreen' => '00ff7f',
+            'aqua' => '00ffff',
+            'cyan' => '00ffff',
+            'midnightblue' => '191970',
+            'dodgerblue' => '1e90ff',
+            'lightseagreen' => '20b2aa',
+            'forestgreen' => '228b22',
+            'seagreen' => '2e8b57',
+            'darkslategray' => '2f4f4f',
+            'darkslategrey' => '2f4f4f',
+            'limegreen' => '32cd32',
+            'mediumseagreen' => '3cb371',
+            'turquoise' => '40e0d0',
+            'royalblue' => '4169e1',
+            'steelblue' => '4682b4',
+            'darkslateblue' => '483d8b',
+            'mediumturquoise' => '48d1cc',
+            'indigo ' => '4b0082',
+            'darkolivegreen' => '556b2f',
+            'cadetblue' => '5f9ea0',
+            'cornflowerblue' => '6495ed',
+            'rebeccapurple' => '663399',
+            'mediumaquamarine' => '66cdaa',
+            'dimgray' => '696969',
+            'dimgrey' => '696969',
+            'slateblue' => '6a5acd',
+            'olivedrab' => '6b8e23',
+            'slategray' => '708090',
+            'slategrey' => '708090',
+            'lightslategray' => '778899',
+            'lightslategrey' => '778899',
+            'mediumslateblue' => '7b68ee',
+            'lawngreen' => '7cfc00',
+            'chartreuse' => '7fff00',
+            'aquamarine' => '7fffd4',
+            'maroon' => '800000',
+            'purple' => '800080',
+            'olive' => '808000',
+            'gray' => '808080',
+            'grey' => '808080',
+            'skyblue' => '87ceeb',
+            'lightskyblue' => '87cefa',
+            'blueviolet' => '8a2be2',
+            'darkred' => '8b0000',
+            'darkmagenta' => '8b008b',
+            'saddlebrown' => '8b4513',
+            'darkseagreen' => '8fbc8f',
+            'lightgreen' => '90ee90',
+            'mediumpurple' => '9370db',
+            'darkviolet' => '9400d3',
+            'palegreen' => '98fb98',
+            'darkorchid' => '9932cc',
+            'yellowgreen' => '9acd32',
+            'sienna' => 'a0522d',
+            'brown' => 'a52a2a',
+            'darkgray' => 'a9a9a9',
+            'darkgrey' => 'a9a9a9',
+            'lightblue' => 'add8e6',
+            'greenyellow' => 'adff2f',
+            'paleturquoise' => 'afeeee',
+            'lightsteelblue' => 'b0c4de',
+            'powderblue' => 'b0e0e6',
+            'firebrick' => 'b22222',
+            'darkgoldenrod' => 'b8860b',
+            'mediumorchid' => 'ba55d3',
+            'rosybrown' => 'bc8f8f',
+            'darkkhaki' => 'bdb76b',
+            'silver' => 'c0c0c0',
+            'mediumvioletred' => 'c71585',
+            'indianred ' => 'cd5c5c',
+            'peru' => 'cd853f',
+            'chocolate' => 'd2691e',
+            'tan' => 'd2b48c',
+            'lightgray' => 'd3d3d3',
+            'lightgrey' => 'd3d3d3',
+            'thistle' => 'd8bfd8',
+            'orchid' => 'da70d6',
+            'goldenrod' => 'daa520',
+            'palevioletred' => 'db7093',
+            'crimson' => 'dc143c',
+            'gainsboro' => 'dcdcdc',
+            'plum' => 'dda0dd',
+            'burlywood' => 'deb887',
+            'lightcyan' => 'e0ffff',
+            'lavender' => 'e6e6fa',
+            'darksalmon' => 'e9967a',
+            'violet' => 'ee82ee',
+            'palegoldenrod' => 'eee8aa',
+            'lightcoral' => 'f08080',
+            'khaki' => 'f0e68c',
+            'aliceblue' => 'f0f8ff',
+            'honeydew' => 'f0fff0',
+            'azure' => 'f0ffff',
+            'sandybrown' => 'f4a460',
+            'wheat' => 'f5deb3',
+            'beige' => 'f5f5dc',
+            'whitesmoke' => 'f5f5f5',
+            'mintcream' => 'f5fffa',
+            'ghostwhite' => 'f8f8ff',
+            'salmon' => 'fa8072',
+            'antiquewhite' => 'faebd7',
+            'linen' => 'faf0e6',
+            'lightgoldenrodyellow' => 'fafad2',
+            'oldlace' => 'fdf5e6',
+            'red' => 'ff0000',
+            'fuchsia' => 'ff00ff',
+            'magenta' => 'ff00ff',
+            'deeppink' => 'ff1493',
+            'orangered' => 'ff4500',
+            'tomato' => 'ff6347',
+            'hotpink' => 'ff69b4',
+            'coral' => 'ff7f50',
+            'darkorange' => 'ff8c00',
+            'lightsalmon' => 'ffa07a',
+            'orange' => 'ffa500',
+            'lightpink' => 'ffb6c1',
+            'pink' => 'ffc0cb',
+            'gold' => 'ffd700',
+            'peachpuff' => 'ffdab9',
+            'navajowhite' => 'ffdead',
+            'moccasin' => 'ffe4b5',
+            'bisque' => 'ffe4c4',
+            'mistyrose' => 'ffe4e1',
+            'blanchedalmond' => 'ffebcd',
+            'papayawhip' => 'ffefd5',
+            'lavenderblush' => 'fff0f5',
+            'seashell' => 'fff5ee',
+            'cornsilk' => 'fff8dc',
+            'lemonchiffon' => 'fffacd',
+            'floralwhite' => 'fffaf0',
+            'snow' => 'fffafa',
+            'yellow' => 'ffff00',
+            'lightyellow' => 'ffffe0',
+            'ivory' => 'fffff0',
+            'white' => 'ffffff'
+        ];
+
+    }
+
+    private function isColorName($color) {
+
+	    $colors = $this->getColorNameList();
+        return array_key_exists(strtolower($color), $colors);
+
+    }
+
+    private function resolveColor($color) {
+
+	    $colors = $this->getColorNameList();
+	    return $colors[strtolower($color)];
+
+    }
+
 }