diff --git a/src/modules/core/Color.cpp b/src/modules/core/Color.cpp
index 750772ac9..3c11264c0 100644
--- a/src/modules/core/Color.cpp
+++ b/src/modules/core/Color.cpp
@@ -163,7 +163,7 @@ core::String Color::toHex(const RGBA rgba, bool hashPrefix) {
 	if (hashPrefix) {
 		hex.append("#");
 	}
-	hex.append(core::string::format("%x%x%x%x", rgba.r, rgba.g, rgba.b, rgba.a));
+	hex.append(core::string::format("%02x%02x%02x%02x", rgba.r, rgba.g, rgba.b, rgba.a));
 	return hex;
 }