diff --git a/mirage.pro b/mirage.pro
index 015af3b0..37c26fb1 100644
--- a/mirage.pro
+++ b/mirage.pro
@@ -14,7 +14,7 @@ QRC_FILE = $$BUILD_DIR/resources.qrc
 RESOURCES += $$QRC_FILE
 HEADERS   += src/utils.h src/clipboard.h \
              submodules/hsluv-c/src/hsluv.h
-SOURCES   += src/main.cpp src/utils.cpp src/clipboard.cpp \
+SOURCES   += src/main.cpp src/clipboard.cpp \
              submodules/hsluv-c/src/hsluv.c
 TARGET     = mirage
 
diff --git a/src/utils.cpp b/src/utils.cpp
deleted file mode 100644
index db74827b..00000000
--- a/src/utils.cpp
+++ /dev/null
@@ -1,42 +0,0 @@
-// SPDX-License-Identifier: LGPL-3.0-or-later
-
-// Function implementations of the Utils class, see the utils.h file.
-
-#include <QColor>
-#include <QLocale>
-#include <QUuid>
-
-#include "utils.h"
-#include "../submodules/hsluv-c/src/hsluv.h"
-
-using namespace std;
-
-
-Utils::Utils() {
-    // Initialization
-}
-
-
-QString Utils::formattedBytes(qint64 bytes, int precision) {
-    return m_locale.formattedDataSize(
-        bytes, precision, QLocale::DataSizeTraditionalFormat
-    );
-}
-
-
-QString Utils::uuid() {
-    return QUuid::createUuid().toString(QUuid::WithoutBraces);
-}
-
-
-QColor Utils::hsluv(qreal hue, qreal saturation, qreal luv, qreal alpha) {
-    double red, green, blue;
-    hsluv2rgb(hue, saturation, luv, &red, &green, &blue);
-
-    return QColor::fromRgbF(
-        qMax(0.0, qMin(1.0, red)),
-        qMax(0.0, qMin(1.0, green)),
-        qMax(0.0, qMin(1.0, blue)),
-        qMax(0.0, qMin(1.0, alpha))
-    );
-}
diff --git a/src/utils.h b/src/utils.h
index 95750957..cb3d0add 100644
--- a/src/utils.h
+++ b/src/utils.h
@@ -9,6 +9,9 @@
 #include <QColor>
 #include <QLocale>
 #include <QObject>
+#include <QUuid>
+
+#include "../submodules/hsluv-c/src/hsluv.h"
 
 
 class Utils : public QObject {
@@ -16,15 +19,33 @@ class Utils : public QObject {
 Q_OBJECT
 
 public:
-    Utils();
+    Utils() {};
 
 public slots:
-    QString formattedBytes(qint64 bytes, int precision = 2);
-    QString uuid();
-    QColor hsluv(qreal hue, qreal saturation, qreal luv, qreal alpha = 1.0);
+    QString formattedBytes(qint64 bytes, int precision = 2) const {
+        return this->appLocale.formattedDataSize(
+            bytes, precision, QLocale::DataSizeTraditionalFormat
+        );
+    }
+
+    QString uuid() const {
+        return QUuid::createUuid().toString(QUuid::WithoutBraces);
+    }
+
+    QColor hsluv(qreal hue, qreal sat, qreal luv, qreal alpha = 1.0) const {
+        double red, green, blue;
+        hsluv2rgb(hue, sat, luv, &red, &green, &blue);
+
+        return QColor::fromRgbF(
+            qMax(0.0, qMin(1.0, red)),
+            qMax(0.0, qMin(1.0, green)),
+            qMax(0.0, qMin(1.0, blue)),
+            qMax(0.0, qMin(1.0, alpha))
+        );
+    }
 
 private:
-    QLocale m_locale;
+    QLocale appLocale;
 };