diff --git a/GeometryDashAPI/Levels/GameObjects/Default/Block.cs b/GeometryDashAPI/Levels/GameObjects/Default/Block.cs
index 2a4d1c0..eda1000 100644
--- a/GeometryDashAPI/Levels/GameObjects/Default/Block.cs
+++ b/GeometryDashAPI/Levels/GameObjects/Default/Block.cs
@@ -45,6 +45,40 @@ public Layer ZLayer
         [GameProperty("32", 1f)] public float Scale { get; set; } = 1f;
         [GameProperty("34", false)] public bool GroupParent { get; set; }
 
+        [GameProperty("43", null)]
+        private Hsv? hsv;
+
+        [GameProperty("44", null)]
+        private Hsv? additionalHsv;
+
+        [GameProperty("41", false)]
+        public bool HasHsv { get; protected set; }
+
+        [GameProperty("42", false)]
+        public bool HasAdditionalHsv { get; protected set; }
+
+        /// <inheritdoc />
+        public Hsv? Hsv
+        {
+            get => hsv;
+            set
+            {
+                hsv = value;
+                HasHsv = value != null;
+            }
+        }
+
+        /// <inheritdoc />
+        public Hsv? AdditionalHsv
+        {
+            get => additionalHsv;
+            set
+            {
+                additionalHsv = value;
+                HasAdditionalHsv = value != null;
+            }
+        }
+
         public Block()
         {
         }
diff --git a/GeometryDashAPI/Levels/GameObjects/IBlock.cs b/GeometryDashAPI/Levels/GameObjects/IBlock.cs
index 57e7835..382694c 100644
--- a/GeometryDashAPI/Levels/GameObjects/IBlock.cs
+++ b/GeometryDashAPI/Levels/GameObjects/IBlock.cs
@@ -1,27 +1,42 @@
 using GeometryDashAPI.Levels.Enums;
 
-namespace GeometryDashAPI.Levels.GameObjects
+namespace GeometryDashAPI.Levels.GameObjects;
+
+public interface IBlock : IGameObject
 {
-    public interface IBlock : IGameObject
-    {
-        int Id { get; set; }
-        float PositionX { get; set; }
-        float PositionY { get; set; }
-        bool HorizontalReflection { get; set; }
-        bool VerticalReflection { get; set; }
-        int Rotation { get; set; }
-        bool Glow { get; set; }
-        int LinkControl { get; set; }
-        short EditorL { get; set; }
-        short EditorL2 { get; set; }
-        bool HighDetail { get; set; }
-        int[] Groups { get; set; }
-        bool DontFade { get; set; }
-        bool DontEnter { get; set; }
-        int ZOrder { get; set; }
-        Layer ZLayer { get; set; }
-        float Scale { get; set; }
-        bool GroupParent { get; set; }
-        bool IsTrigger { get; set; }
-    }
+    int Id { get; set; }
+    float PositionX { get; set; }
+    float PositionY { get; set; }
+    bool HorizontalReflection { get; set; }
+    bool VerticalReflection { get; set; }
+    int Rotation { get; set; }
+    bool Glow { get; set; }
+    int LinkControl { get; set; }
+    short EditorL { get; set; }
+    short EditorL2 { get; set; }
+    bool HighDetail { get; set; }
+    int[] Groups { get; set; }
+    bool DontFade { get; set; }
+    bool DontEnter { get; set; }
+    int ZOrder { get; set; }
+    Layer ZLayer { get; set; }
+    float Scale { get; set; }
+    bool GroupParent { get; set; }
+    bool IsTrigger { get; set; }
+
+    bool HasHsv { get; }
+    bool HasAdditionalHsv { get; }
+
+    /// <summary>
+    /// If block has 1 color: <b>base</b> or <b>detail</b><br/>
+    /// The <see cref="Hsv"/> value takes either <b>base</b> or <b>detail</b><br/><br/>
+    /// If block has 2 colors, <see cref="Hsv"/> is <b>base</b>
+    /// </summary>
+    Hsv? Hsv { get; set; }
+
+    /// <summary>
+    /// If block has 2 colors: <b>base</b> and <b>detail</b><br/>
+    /// <see cref="AdditionalHsv"/> is detail, otherwise null
+    /// </summary>
+    Hsv? AdditionalHsv { get; set; }
 }