diff --git a/core/modules/color/color.module b/core/modules/color/color.module
index dc8be4a..9d5c51d 100644
--- a/core/modules/color/color.module
+++ b/core/modules/color/color.module
@@ -469,10 +469,12 @@ function _color_rewrite_stylesheet($theme, &$info, &$paths, $palette, $style) {
     $output .= $fixed;
   }
 
-  // Replace paths to images.
+  // Replace paths to images. Allow inheritance from base theme.
   foreach ($paths['map'] as $before => $after) {
     $before = base_path() . $paths['source'] . $before;
-    $before = preg_replace('`(^|/)(?!../)([^/]+)/../`', '$1', $before);
+    while (preg_match('`(^|/)\.\./`', $before) {
+      $before = preg_replace('`(^|/)(?!\.\./)([^/]+)/\.\./`', '$1', $before);
+    }
     $output = str_replace($before, $after, $output);
   }