diff --git a/src/main/resources/static/js/helper.js b/src/main/resources/static/js/helper.js
index 3dfd5bd..74b8502 100644
--- a/src/main/resources/static/js/helper.js
+++ b/src/main/resources/static/js/helper.js
@@ -27,10 +27,10 @@ validateTime = function(inputField, okButtonId) {
 	var regexPattern = /^([01]?[0-9]|2[0-3]):[0-5][0-9]$/;
 	var valid = value == "" ? true : regexPattern.test(value);
 	if (valid) {
-		$(inputField).css("background-color", "#cfc");
+		$(inputField).css("background-color", "#cfc").css("color", "black");
 		$("[id='" + okButtonId + "']").removeAttr('disabled');
 	} else {
-		$(inputField).css("background-color", "#fcc");
+		$(inputField).css("background-color", "#fcc").css("color", "black");
 		$("[id='" + okButtonId + "']").attr('disabled', 'disabled');
 	}
 }
\ No newline at end of file