diff --git a/web/app/models/UOJProblem.php b/web/app/models/UOJProblem.php
index f78575b..e200a14 100644
--- a/web/app/models/UOJProblem.php
+++ b/web/app/models/UOJProblem.php
@@ -37,13 +37,13 @@ class UOJProblem {
 		1600 => '#0000ff',
 		1800 => '#0000ff',
 		1900 => '#0000ff',
-		2000 => '#c0c000',
-		2100 => '#c0c000',
-		2200 => '#c0c000',
-		2300 => '#c0c000',
+		2000 => '#aa00aa',
+		2100 => '#aa00aa',
+		2200 => '#aa00aa',
+		2300 => '#ff8000',
 		2400 => '#ff8000',
 		2500 => '#ff8000',
-		2700 => '#ff8000',
+		2700 => '#ff0000',
 		2900 => '#ff0000',
 		3100 => '#ff0000',
 		3300 => '#aa0000',