diff --git a/README.md b/README.md
index d640e2a009..f6fd4a508f 100644
--- a/README.md
+++ b/README.md
@@ -58,6 +58,7 @@ git clone https://github.com/JimBobSquarePants/ImageSharp
  - [x] YCbCr
 - IPackedPixel\<TPacked\> representations of color models. Compatible with Microsoft XNA Game Studio and MonoGame.
  - [x] Alpha8 
+ - [x] Argb 
  - [x] Bgr565 
  - [x] Bgra444 
  - [x] Bgra565