diff --git a/README.md b/README.md
index d595c47..7d6a66e 100644
--- a/README.md
+++ b/README.md
@@ -65,7 +65,7 @@ from haishoku.haishoku import Haishoku
 palette = Haishoku.getPalette( image )
 ```
 
-returns: [(R, G, B), (R, G, B), ...] `Array` length <= 8
+returns: [(percentage, (R, G, B)), (percentage, (R, G, B)), ...] `Array` length <= 8
 
 #### • showPalette( image )
 
diff --git a/docs/document_zh.md b/docs/document_zh.md
index 2dab33b..94f7c18 100644
--- a/docs/document_zh.md
+++ b/docs/document_zh.md
@@ -65,7 +65,7 @@ from haishoku.haishoku import Haishoku
 palette = Haishoku.getPalette( image )
 ```
 
-返回一个结构为： [(R, G, B), (R, G, B), ...] 最大长度为8的`数组`
+返回一个结构为： [(percentage, (R, G, B)), (percentage, (R, G, B)), ...] 最大长度为8的`数组`
 
 #### • showPalette( image )