diff --git a/wp-includes/general-template.php b/wp-includes/general-template.php
index fefaaecfbc..07bfc840b1 100644
--- a/wp-includes/general-template.php
+++ b/wp-includes/general-template.php
@@ -2107,33 +2107,32 @@ function wp_admin_css_color( $key, $name, $url, $colors = array(), $icons = arra
  * @since 3.0.0
  */
 function register_admin_color_schemes() {
-	$suffix = ( defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ) ? '' : '.min';
-
 	wp_admin_css_color( 'fresh', _x( 'Default', 'admin color scheme' ),
-		admin_url( "css/colors-fresh$suffix.css" ),
+		admin_url( 'css/colors-fresh.min.css' ),
 		array( '#222', '#333', '#0074a2', '#2ea2cc' )
 	);
 
 	// Other color schemes are not available when running out of src
-	if ( ! strpos( $GLOBALS['wp_version'], '-src' ) ) {
-		wp_admin_css_color( 'light', _x( 'Light', 'admin color scheme' ),
-			admin_url( "css/color-schemes/light/colors$suffix.css" ),
-			array( '#e5e5e5', '#999', '#d64e07', '#04a4cc' ),
-			array( 'base' => '#999', 'focus' => '#ccc', 'current' => '#ccc' )
-		);
+	if ( false !== strpos( $GLOBALS['wp_version'], '-src' ) )
+		return;
 
-		wp_admin_css_color( 'blue', _x( 'Blue', 'admin color scheme' ),
-			admin_url( "css/color-schemes/blue/colors$suffix.css" ),
-			array( '#096484', '#4796b3', '#52accc', '#74B6CE' ),
-			array( 'base' => '#e5f8ff', 'focus' => '#fff', 'current' => '#fff' )
-		);
+	wp_admin_css_color( 'light', _x( 'Light', 'admin color scheme' ),
+		admin_url( 'css/color-schemes/light/colors.min.css' ),
+		array( '#e5e5e5', '#999', '#d64e07', '#04a4cc' ),
+		array( 'base' => '#999', 'focus' => '#ccc', 'current' => '#ccc' )
+	);
 
-		wp_admin_css_color( 'midnight', _x( 'Midnight', 'admin color scheme' ),
-			admin_url( "css/color-schemes/midnight/colors$suffix.css" ),
-			array( '#25282b', '#363b3f', '#69a8bb', '#e14d43' ),
-			array( 'base' => '#f1f2f3', 'focus' => '#fff', 'current' => '#fff' )
-		);
-	}
+	wp_admin_css_color( 'blue', _x( 'Blue', 'admin color scheme' ),
+		admin_url( 'css/color-schemes/blue/colors.min.css' ),
+		array( '#096484', '#4796b3', '#52accc', '#74B6CE' ),
+		array( 'base' => '#e5f8ff', 'focus' => '#fff', 'current' => '#fff' )
+	);
+
+	wp_admin_css_color( 'midnight', _x( 'Midnight', 'admin color scheme' ),
+		admin_url( 'css/color-schemes/midnight/colors.min.css' ),
+		array( '#25282b', '#363b3f', '#69a8bb', '#e14d43' ),
+		array( 'base' => '#f1f2f3', 'focus' => '#fff', 'current' => '#fff' )
+	);
 }
 
 /**