diff --git a/imgui.cpp b/imgui.cpp
index c5731b0..2356302 100644
--- a/imgui.cpp
+++ b/imgui.cpp
@@ -9219,9 +9219,9 @@
         // RGB Hexadecimal Input
         char buf[64];
         if (alpha)
-            ImFormatString(buf, IM_ARRAYSIZE(buf), "#%02X%02X%02X%02X", i[0], i[1], i[2], i[3]);
+            ImFormatString(buf, IM_ARRAYSIZE(buf), "#%02X%02X%02X%02X", ImClamp(i[0],0,255), ImClamp(i[1],0,255), ImClamp(i[2],0,255), ImClamp(i[3],0,255));
         else
-            ImFormatString(buf, IM_ARRAYSIZE(buf), "#%02X%02X%02X", i[0], i[1], i[2]);
+            ImFormatString(buf, IM_ARRAYSIZE(buf), "#%02X%02X%02X", ImClamp(i[0],0,255), ImClamp(i[1],0,255), ImClamp(i[2],0,255));
         PushItemWidth(w_items_all);
         if (InputText("##Text", buf, IM_ARRAYSIZE(buf), ImGuiInputTextFlags_CharsHexadecimal | ImGuiInputTextFlags_CharsUppercase))
         {