diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8f93f5520..4e56275af 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,11 @@
 
 * Fix Electron support when `nodeIntegration` is disabled.
 
+### Dart API
+
+* All range checks for `SassColor` constructors now throw `RangeError`s with
+  `start` and `end` set.
+
 ## 1.32.5
 
 * **Potentially breaking bug fix:** When using `@for` with numbers that have
diff --git a/lib/src/util/number.dart b/lib/src/util/number.dart
index 53bcf9239..7487ad95b 100644
--- a/lib/src/util/number.dart
+++ b/lib/src/util/number.dart
@@ -89,5 +89,6 @@ num fuzzyCheckRange(num number, num min, num max) {
 num fuzzyAssertRange(num number, num min, num max, [String name]) {
   var result = fuzzyCheckRange(number, min, max);
   if (result != null) return result;
-  throw RangeError.value(number, name, "must be between $min and $max.");
+  throw RangeError.range(
+      number, min, max, name, "must be between $min and $max");
 }