diff --git a/test/integration/render/scenarios/regression/cartocolor-subpalette/reference.png b/test/integration/render/scenarios/regression/cartocolor-subpalette/reference.png
new file mode 100644
index 000000000..0bb3efe72
Binary files /dev/null and b/test/integration/render/scenarios/regression/cartocolor-subpalette/reference.png differ
diff --git a/test/integration/render/scenarios/regression/cartocolor-subpalette/scenario.js b/test/integration/render/scenarios/regression/cartocolor-subpalette/scenario.js
new file mode 100644
index 000000000..01ac91116
--- /dev/null
+++ b/test/integration/render/scenarios/regression/cartocolor-subpalette/scenario.js
@@ -0,0 +1,19 @@
+const map = new CartoMap({
+    container: 'map',
+    background: 'black'
+});
+
+const source = new carto.source.GeoJSON(sources['points3']);
+const viz = new carto.Viz(`
+    color: ramp(top(@prop, @num), CB_BLUES)
+    width: 50
+    @prop: $cat
+    @num: 2
+`);
+const layer = new carto.Layer('layer', source, viz);
+
+viz.variables.num.blendTo(2, 0);
+layer.addTo(map);
+layer.on('loaded', () => {
+    window.loaded = true;
+});