diff --git a/React/Base/RCTConvert.m b/React/Base/RCTConvert.m
index 3c9143c17d29ba..854daaf7543d24 100644
--- a/React/Base/RCTConvert.m
+++ b/React/Base/RCTConvert.m
@@ -595,8 +595,8 @@ + (UIColor *)UIColor:(id)json
     color = [UIColor whiteColor];
   }
 
-  // Cache and return
-  if (json) {
+  // Cache if possible and return
+  if (json && [colorCache count] < 204) {
     colorCache[json] = color;
   }
   return color;