diff --git a/src/lib/dynamic-contrast.js b/src/lib/dynamic-contrast.js
index 1109d01..80f544d 100644
--- a/src/lib/dynamic-contrast.js
+++ b/src/lib/dynamic-contrast.js
@@ -12,15 +12,16 @@
 import webColors from 'color-name';
 
 export function getColorContrast(color) {
-  const rgbExp = /^rgba?[\s+]?\(\s*([01]?[0-9]?[0-9]|2[0-4][0-9]|25[0-5])\s*,\s*([01]?[0-9]?[0-9]|2[0-4][0-9]|25[0-5])\s*,\s*([01]?[0-9]?[0-9]|2[0-4][0-9]|25[0-5])\s*(?:,\s*([\d.]+)\s*)?\)/im,
-    hexExp = /^(?:#)|([a-fA-F0-9]{3}|[a-fA-F0-9]{6})$/igm;
+  const rgbExp =
+      /^rgba?[\s+]?\(\s*([0-9]+(?:\.[0-9]+)?)\s*,\s*([0-9]+(?:\.[0-9]+)?)\s*,\s*([0-9]+(?:\.[0-9]+)?)\s*(?:,\s*([\d.]+)\s*)?\)/im,
+    hexExp = /^(?:#)|([a-fA-F0-9]{3}|[a-fA-F0-9]{6})$/gim;
   let rgb = color.match(rgbExp),
     hex = color.match(hexExp),
     r, g, b;
   if (rgb) {
-    r = parseInt(rgb[1], 10);
-    g = parseInt(rgb[2], 10);
-    b = parseInt(rgb[3], 10);
+    r = parseFloat(rgb[1]);
+    g = parseFloat(rgb[2]);
+    b = parseFloat(rgb[3]);
   } else if (hex) {
     if (hex.length > 1) {
       hex = hex[1];