diff --git a/crates/compiler/src/color/name.rs b/crates/compiler/src/color/name.rs
index a8e4730..448cc4d 100644
--- a/crates/compiler/src/color/name.rs
+++ b/crates/compiler/src/color/name.rs
@@ -1,5 +1,4 @@
-//! A big dictionary of named colors and their
-//! corresponding RGBA values
+//! A big dictionary of named colors and their corresponding RGBA values
 
 pub(crate) struct NamedColorMap {
     name_to_rgba: phf::Map<&'static str, [u8; 4]>,
@@ -11,18 +10,17 @@ impl NamedColorMap {
         self.name_to_rgba.get(name)
     }
 
-    // transparent is not handled
     pub fn get_by_rgba(&self, rgba: [u8; 3]) -> Option<&&str> {
         self.rgba_to_name.get(&rgba)
     }
 }
 
-// Adding one color requires adding to both map due to limitation in phf crate.
 pub(crate) static NAMED_COLORS: NamedColorMap = NamedColorMap {
     name_to_rgba: phf::phf_map! {
         "aliceblue" => [0xF0, 0xF8, 0xFF, 0xFF],
         "antiquewhite" => [0xFA, 0xEB, 0xD7, 0xFF],
         "aqua" => [0x00, 0xFF, 0xFF, 0xFF],
+        "cyan" => [0x00, 0xFF, 0xFF, 0xFF],
         "aquamarine" => [0x7F, 0xFF, 0xD4, 0xFF],
         "azure" => [0xF0, 0xFF, 0xFF, 0xFF],
         "beige" => [0xF5, 0xF5, 0xDC, 0xFF],
@@ -44,6 +42,7 @@ pub(crate) static NAMED_COLORS: NamedColorMap = NamedColorMap {
         "darkcyan" => [0x00, 0x8B, 0x8B, 0xFF],
         "darkgoldenrod" => [0xB8, 0x86, 0x0B, 0xFF],
         "darkgray" => [0xA9, 0xA9, 0xA9, 0xFF],
+        "darkgrey" => [0xA9, 0xA9, 0xA9, 0xFF],
         "darkgreen" => [0x00, 0x64, 0x00, 0xFF],
         "darkkhaki" => [0xBD, 0xB7, 0x6B, 0xFF],
         "darkmagenta" => [0x8B, 0x00, 0x8B, 0xFF],
@@ -55,21 +54,25 @@ pub(crate) static NAMED_COLORS: NamedColorMap = NamedColorMap {
         "darkseagreen" => [0x8F, 0xBC, 0x8F, 0xFF],
         "darkslateblue" => [0x48, 0x3D, 0x8B, 0xFF],
         "darkslategray" => [0x2F, 0x4F, 0x4F, 0xFF],
+        "darkslategrey" => [0x2F, 0x4F, 0x4F, 0xFF],
         "darkturquoise" => [0x00, 0xCE, 0xD1, 0xFF],
         "darkviolet" => [0x94, 0x00, 0xD3, 0xFF],
         "deeppink" => [0xFF, 0x14, 0x93, 0xFF],
         "deepskyblue" => [0x00, 0xBF, 0xFF, 0xFF],
         "dimgray" => [0x69, 0x69, 0x69, 0xFF],
+        "dimgrey" => [0x69, 0x69, 0x69, 0xFF],
         "dodgerblue" => [0x1E, 0x90, 0xFF, 0xFF],
         "firebrick" => [0xB2, 0x22, 0x22, 0xFF],
         "floralwhite" => [0xFF, 0xFA, 0xF0, 0xFF],
         "forestgreen" => [0x22, 0x8B, 0x22, 0xFF],
         "fuchsia" => [0xFF, 0x00, 0xFF, 0xFF],
+        "magenta" => [0xFF, 0x00, 0xFF, 0xFF],
         "gainsboro" => [0xDC, 0xDC, 0xDC, 0xFF],
         "ghostwhite" => [0xF8, 0xF8, 0xFF, 0xFF],
         "gold" => [0xFF, 0xD7, 0x00, 0xFF],
         "goldenrod" => [0xDA, 0xA5, 0x20, 0xFF],
         "gray" => [0x80, 0x80, 0x80, 0xFF],
+        "grey" => [0x80, 0x80, 0x80, 0xFF],
         "green" => [0x00, 0x80, 0x00, 0xFF],
         "greenyellow" => [0xAD, 0xFF, 0x2F, 0xFF],
         "honeydew" => [0xF0, 0xFF, 0xF0, 0xFF],
@@ -87,12 +90,14 @@ pub(crate) static NAMED_COLORS: NamedColorMap = NamedColorMap {
         "lightcyan" => [0xE0, 0xFF, 0xFF, 0xFF],
         "lightgoldenrodyellow" => [0xFA, 0xFA, 0xD2, 0xFF],
         "lightgray" => [0xD3, 0xD3, 0xD3, 0xFF],
+        "lightgrey" => [0xD3, 0xD3, 0xD3, 0xFF],
         "lightgreen" => [0x90, 0xEE, 0x90, 0xFF],
         "lightpink" => [0xFF, 0xB6, 0xC1, 0xFF],
         "lightsalmon" => [0xFF, 0xA0, 0x7A, 0xFF],
         "lightseagreen" => [0x20, 0xB2, 0xAA, 0xFF],
         "lightskyblue" => [0x87, 0xCE, 0xFA, 0xFF],
         "lightslategray" => [0x77, 0x88, 0x99, 0xFF],
+        "lightslategrey" => [0x77, 0x88, 0x99, 0xFF],
         "lightsteelblue" => [0xB0, 0xC4, 0xDE, 0xFF],
         "lightyellow" => [0xFF, 0xFF, 0xE0, 0xFF],
         "lime" => [0x00, 0xFF, 0x00, 0xFF],
@@ -145,6 +150,7 @@ pub(crate) static NAMED_COLORS: NamedColorMap = NamedColorMap {
         "skyblue" => [0x87, 0xCE, 0xEB, 0xFF],
         "slateblue" => [0x6A, 0x5A, 0xCD, 0xFF],
         "slategray" => [0x70, 0x80, 0x90, 0xFF],
+        "slategrey" => [0x70, 0x80, 0x90, 0xFF],
         "snow" => [0xFF, 0xFA, 0xFA, 0xFF],
         "springgreen" => [0x00, 0xFF, 0x7F, 0xFF],
         "steelblue" => [0x46, 0x82, 0xB4, 0xFF],
diff --git a/crates/lib/tests/color.rs b/crates/lib/tests/color.rs
index 2f006c0..ee89c51 100644
--- a/crates/lib/tests/color.rs
+++ b/crates/lib/tests/color.rs
@@ -705,6 +705,16 @@ test!(
     "a {\n  color: change-color(red, $whiteness: 50%, $hue: 230);\n}\n",
     "a {\n  color: #8095ff;\n}\n"
 );
+test!(
+    aqua_alias,
+    "a {\n  color: cyan == aqua;\n}\n",
+    "a {\n  color: true;\n}\n"
+);
+test!(
+    fuchsia_alias,
+    "a {\n  color: magenta == fuchsia;\n}\n",
+    "a {\n  color: true;\n}\n"
+);
 error!(
     hex_color_starts_with_number_non_hex_digit_at_position_6,
     "a {\n  color: #00000z;\n}\n", "Error: Expected hex digit."
diff --git a/crates/lib/tests/compressed.rs b/crates/lib/tests/compressed.rs
index 04b5275..e21d4cd 100644
--- a/crates/lib/tests/compressed.rs
+++ b/crates/lib/tests/compressed.rs
@@ -152,3 +152,9 @@ test!(
     "a{width:calc(100% + 32px)}",
     grass::Options::default().style(grass::OutputStyle::Compressed)
 );
+test!(
+    cyan_normalized_to_aqua,
+    "a {\n  color: cyan;\n}\n",
+    "a{color:aqua}",
+    grass::Options::default().style(grass::OutputStyle::Compressed)
+);