diff --git a/internal/web/assets/app.js b/internal/web/assets/app.js
index 3a92f2d..c28f25a 100644
--- a/internal/web/assets/app.js
+++ b/internal/web/assets/app.js
@@ -212,9 +212,9 @@
     setText('cpu-info', lastCPUCount + (lastCPUCount === 1 ? ' core' : ' cores') + (cpuModel ? ' · ' + cpuModel : ''));
 
     // Load average gauges
-    renderGauge('gauge-load1', 'load1-value', snap.load_average.load1);
-    renderGauge('gauge-load5', 'load5-value', snap.load_average.load5);
-    renderGauge('gauge-load15', 'load15-value', snap.load_average.load15);
+    renderGauge('gauge-load1', 'load1-value', snap.load_average.load1, t.cpu_warn_percent, t.cpu_crit_percent);
+    renderGauge('gauge-load5', 'load5-value', snap.load_average.load5, t.cpu_warn_percent, t.cpu_crit_percent);
+    renderGauge('gauge-load15', 'load15-value', snap.load_average.load15, t.cpu_warn_percent, t.cpu_crit_percent);
 
     // Temperature
     const tempEl = document.getElementById('temp-value');
@@ -516,9 +516,9 @@
     });
   }
 
-  function renderGauge(canvasId, valueId, value) {
+  function renderGauge(canvasId, valueId, value, warnPercent, critPercent) {
     const canvas = document.getElementById(canvasId);
-    const cls = levelClass(value, lastCPUCount * 0.7, lastCPUCount * 1.0);
+    const cls = levelClass(value, lastCPUCount * warnPercent / 100, lastCPUCount * critPercent / 100);
     drawGauge(canvas, value, Math.max(lastCPUCount, 1), cls);
     setText(valueId, value.toFixed(2));
   }
diff --git a/internal/web/gauge_test.go b/internal/web/gauge_test.go
new file mode 100644
index 0000000..0892435
--- /dev/null
+++ b/internal/web/gauge_test.go
@@ -0,0 +1,35 @@
+package web
+
+import (
+	"strings"
+	"testing"
+)
+
+// TestAppJS_LoadGaugeUsesCPUThresholds guards against regressing issue #67:
+// the load-average gauge color scale must derive from the configured
+// cpu_warn_percent/cpu_crit_percent thresholds (relative to core count), as
+// documented in packaging/pimonitor.example.yaml, rather than a hardcoded
+// 70 %/100 % of core count.
+func TestAppJS_LoadGaugeUsesCPUThresholds(t *testing.T) {
+	data, err := assetsFS.ReadFile("assets/app.js")
+	if err != nil {
+		t.Fatalf("read app.js: %v", err)
+	}
+	js := string(data)
+
+	if strings.Contains(js, "lastCPUCount * 0.7") || strings.Contains(js, "lastCPUCount * 1.0") {
+		t.Error("app.js: found hardcoded 0.7/1.0 core-count gauge thresholds; the load gauges must use the configured cpu_warn_percent/cpu_crit_percent instead")
+	}
+	if !strings.Contains(js, "lastCPUCount * warnPercent / 100") || !strings.Contains(js, "lastCPUCount * critPercent / 100") {
+		t.Error("app.js: expected renderGauge to scale cpu_warn_percent/cpu_crit_percent by lastCPUCount")
+	}
+	for _, call := range []string{
+		"renderGauge('gauge-load1', 'load1-value', snap.load_average.load1, t.cpu_warn_percent, t.cpu_crit_percent);",
+		"renderGauge('gauge-load5', 'load5-value', snap.load_average.load5, t.cpu_warn_percent, t.cpu_crit_percent);",
+		"renderGauge('gauge-load15', 'load15-value', snap.load_average.load15, t.cpu_warn_percent, t.cpu_crit_percent);",
+	} {
+		if !strings.Contains(js, call) {
+			t.Errorf("app.js: expected call %q", call)
+		}
+	}
+}