diff --git a/Content.Client/_DEN/Lobby/UI/Traits/EntityTraitSelector.xaml.cs b/Content.Client/_DEN/Lobby/UI/Traits/EntityTraitSelector.xaml.cs
index fa60ce13c2..6bbe3b8287 100644
--- a/Content.Client/_DEN/Lobby/UI/Traits/EntityTraitSelector.xaml.cs
+++ b/Content.Client/_DEN/Lobby/UI/Traits/EntityTraitSelector.xaml.cs
@@ -137,8 +137,18 @@ private static string ConstructTooltipDescription(EntityTraitPrototype trait,
         return tooltipString;
     }
 
-    public void SetInvalid(bool invalid)
+    public void UpdateAppearance(bool invalid)
     {
-        SelectorCheckbox.Label.FontColorOverride = invalid ? Color.Red : null;
+        if (_trait is null)
+            return;
+        var valid = SharedPlayerRequirementManager.CheckRequirements(GetContext(), _trait.Requirements);
+        SelectorCheckbox.Disabled = !valid && !Preference;
+        Color? fontColor = null;
+        if (invalid)
+            fontColor = Color.Red;
+        else if (!valid)
+            fontColor = Color.Gray;
+        
+        SelectorCheckbox.Label.FontColorOverride = fontColor;
     }
 }
diff --git a/Content.Client/_DEN/Lobby/UI/Traits/TraitCategoryBox.xaml.cs b/Content.Client/_DEN/Lobby/UI/Traits/TraitCategoryBox.xaml.cs
index 32926df911..c99aa5d5da 100644
--- a/Content.Client/_DEN/Lobby/UI/Traits/TraitCategoryBox.xaml.cs
+++ b/Content.Client/_DEN/Lobby/UI/Traits/TraitCategoryBox.xaml.cs
@@ -72,7 +72,7 @@ public void SetCategory(TraitCategoryPrototype category)
 
             var tooManySelected = TotalCost > category.MaxTraitPoints;
             foreach (var selector in _selectors)
-                selector.SetInvalid(tooManySelected);
+                selector.UpdateAppearance(tooManySelected);
         }
         else
             CategoryMaxTraitLabel.Visible = false;
diff --git a/Content.Shared/_DEN/Requirements/Managers/SharedPlayerRequirementManager.cs b/Content.Shared/_DEN/Requirements/Managers/SharedPlayerRequirementManager.cs
index 26175b955d..de0974008e 100644
--- a/Content.Shared/_DEN/Requirements/Managers/SharedPlayerRequirementManager.cs
+++ b/Content.Shared/_DEN/Requirements/Managers/SharedPlayerRequirementManager.cs
@@ -63,9 +63,9 @@ public static bool CheckRequirement(PlayerRequirementContext context, IPlayerReq
 
         // Check the actual requirement, now.
         if (!requirement.CheckRequirement(context))
-            return false;
+            return requirement.Inverted;
 
-        return true;
+        return !requirement.Inverted;
     }
 
     /// <summary>