4 files changed, 15 insertions, 12 deletions
diff --git a/tests/ref/utility/color.png b/tests/ref/utility/color.png
new file mode 100644
index 00000000..e7d87ba4
--- /dev/null
+++ b/tests/ref/utility/color.png
diff --git a/tests/typ/layout/stack-1.typ b/tests/typ/layout/stack-1.typ
index a4a0d6b8..d8075e9d 100644
--- a/tests/typ/layout/stack-1.typ
+++ b/tests/typ/layout/stack-1.typ
@@ -8,8 +8,8 @@
 )
 
 #let shaded = {
-  let v = 0
-  let next() = { v += 0.1; rgb(v, v, v) }
+  let v = 0%
+  let next() = { v += 10%; rgb(v, v, v) }
   w => rect(width: w, height: 10pt, fill: next())
 }
 
diff --git a/tests/typ/utility/color.typ b/tests/typ/utility/color.typ
index 759672ff..fa30a4f2 100644
--- a/tests/typ/utility/color.typ
+++ b/tests/typ/utility/color.typ
@@ -3,20 +3,21 @@
 
 ---
 // Compare both ways.
-#test(rgb(0.0, 0.3, 0.7), rgb("004db3"))
+#test(rgb(0%, 30%, 70%), rgb("004db3"))
 
 // Alpha channel.
-#test(rgb(1.0, 0.0, 0.0, 0.5), rgb("ff000080"))
+#test(rgb(255, 0, 0, 50%), rgb("ff000080"))
 
 ---
-// Error for values that are out of range.
-// Error: 11-14 value must be between 0.0 and 1.0
-#test(rgb(-30, 15.5, 0.5))
+// Test CMYK color conversion.
+// Ref: true
+#rect(fill: cmyk(69%, 11%, 69%, 41%))
+#rect(fill: cmyk(50%, 64%, 16%, 17%))
 
 ---
 // Error for values that are out of range.
-// Error: 26-30 value must be between 0.0 and 1.0
-#test(rgb(0.1, 0.2, 0.3, -0.1))
+// Error: 11-14 must be between 0 and 255
+#test(rgb(-30, 15, 50))
 
 ---
 // Error: 6-11 invalid hex string
@@ -31,5 +32,5 @@
 #rgb(0, 1)
 
 ---
-// Error: 21-26 expected float, found boolean
-#rgb(0.1, 0.2, 0.3, false)
+// Error: 21-26 expected integer or relative, found boolean
+#rgb(10%, 20%, 30%, false)
diff --git a/tests/typeset.rs b/tests/typeset.rs
index f7f2eccf..31610ffc 100644
--- a/tests/typeset.rs
+++ b/tests/typeset.rs
@@ -11,7 +11,7 @@ use walkdir::WalkDir;
 use typst::diag::Error;
 use typst::eval::{Smart, StyleMap, Value};
 use typst::frame::{Element, Frame};
-use typst::geom::Length;
+use typst::geom::{Length, RgbaColor};
 use typst::library::{PageNode, TextNode};
 use typst::loading::FsLoader;
 use typst::parse::Scanner;
@@ -77,6 +77,8 @@ fn main() {
 
     // Hook up an assert function into the global scope.
     let mut std = typst::library::new();
+    std.def_const("conifer", RgbaColor::new(0x9f, 0xEB, 0x52, 0xFF));
+    std.def_const("forest", RgbaColor::new(0x43, 0xA1, 0x27, 0xFF));
     std.def_func("test", move |_, args| {
         let lhs = args.expect::<Value>("left-hand side")?;
         let rhs = args.expect::<Value>("right-hand side")?;