fix: support multiple decimal places

Author: jeoy

index.js

@@ -28,7 +28,7 @@ var rgb2hex = module.exports = function rgb2hex(color) {
     /**
      * parse input
      */
-    var digits = /(.*?)rgb(a)??\((\d{1,3}),(\d{1,3}),(\d{1,3})(,([01]|0??\.([0-9]{0,3})))??\)/.exec(strippedColor);
+    var digits = /(.*?)rgb(a)??\((\d{1,3}),(\d{1,3}),(\d{1,3})(,([01]|0??\.([0-9]{0,})))??\)/.exec(strippedColor);
 
     if(!digits) {
         // or throw error if input isn't a valid rgb(a) color

rgb2hex.js

@@ -21,7 +21,7 @@
         /**
          * parse input
          */
-        var digits = /(.*?)rgb(a)??\((\d{1,3}),(\d{1,3}),(\d{1,3})(,([01]|0??\.([0-9]{0,3})))??\)/.exec(strippedColor);
+        var digits = /(.*?)rgb(a)??\((\d{1,3}),(\d{1,3}),(\d{1,3})(,([01]|0??\.([0-9]{0,})))??\)/.exec(strippedColor);
 
         if(!digits) {
             // or throw error if input isn't a valid rgb(a) color

rgb2hex.min.js

@@ -67,8 +67,8 @@ describe('rgb2hex should', () => {
             expect(parsedValue.alpha).toEqual(1)
         })
 
-        it('converting rgba(12,173,22,.67)', () => {
-            const input = 'rgba(12,173,22,.67)'
+        it('converting rgba(12,173,22,.67313)', () => {
+            const input = 'rgba(12,173,22,.67313)'
             const parsedValue = rgb2hex(input)
 
             expect(parsedValue).toHaveProperty('hex')