diff --git a/color-module/src/color_card.rs b/color-module/src/color_card.rs
index a6636fc..e9edab6 100644
--- a/color-module/src/color_card.rs
+++ b/color-module/src/color_card.rs
@@ -20,7 +20,7 @@ pub struct ColorDescription {
 const COLOR_CARDS_JSON: &str = include_str!("colorcards.json");
 pub const COLOR_CARDS: LazyLock<Vec<ColorDescription>> =
     LazyLock::new(|| serde_json::from_str(COLOR_CARDS_JSON).expect("Failed to parse color cards"));
-const CHROMA_EPSILON: f32 = 0.0001;
+const CHROMA_EPSILON: f32 = 0.02;
 
 #[derive(Debug, Clone, PartialEq, Display, EnumString, EnumIter)]
 #[strum(serialize_all = "lowercase")]
@@ -42,7 +42,7 @@ pub enum Category {
 impl Category {
     pub fn from_oklch_components(lightness: f32, chroma: f32, hue: f32) -> Self {
         if chroma < CHROMA_EPSILON {
-            if lightness < 0.1 {
+            if lightness < 0.15 {
                 Category::Black
             } else if lightness > 0.9 {
                 Category::White
@@ -52,15 +52,15 @@ impl Category {
         } else {
             let processed_hue = hue % 360.0;
             match processed_hue {
-                0.0..=30.0 => Category::Red,
-                30.0..=60.0 => Category::Orange,
-                60.0..=90.0 => Category::Yellow,
-                90.0..=150.0 => Category::Green,
-                150.0..=210.0 => Category::Cyan,
+                0.0..=15.0 => Category::Magenta,
+                15.0..=45.0 => Category::Red,
+                45.0..=75.0 => Category::Orange,
+                75.0..=120.0 => Category::Yellow,
+                120.0..=180.0 => Category::Green,
+                180.0..=210.0 => Category::Cyan,
                 210.0..=270.0 => Category::Blue,
-                270.0..=300.0 => Category::Purple,
-                300.0..=330.0 => Category::Magenta,
-                330.0..=360.0 => Category::Red,
+                270.0..=345.0 => Category::Purple,
+                345.0..=360.0 => Category::Magenta,
                 _ => Category::Unknown,
             }
         }
diff --git a/src/color_functions/color_module_bg.wasm b/src/color_functions/color_module_bg.wasm
index d1143b8..5ffe623 100644
Binary files a/src/color_functions/color_module_bg.wasm and b/src/color_functions/color_module_bg.wasm differ