diff --git a/Lib/fontTools/colorLib/builder.py b/Lib/fontTools/colorLib/builder.py
index b6a54eae5..410f2b787 100644
--- a/Lib/fontTools/colorLib/builder.py
+++ b/Lib/fontTools/colorLib/builder.py
@@ -493,11 +493,11 @@ def buildPaintGlyph(glyph: str, paint: _PaintInput) -> ot.Paint:
     return self
 
 
-def buildPaintColorGlyph(
+def buildPaintColrSlice(
     glyph: str, firstLayerIndex: int = 0, lastLayerIndex: int = 255
 ) -> ot.Paint:
     self = ot.Paint()
-    self.Format = int(ot.Paint.Format.PaintColorGlyph)
+    self.Format = int(ot.Paint.Format.PaintColrSlice)
     self.Glyph = glyph
     if firstLayerIndex > lastLayerIndex:
         raise ValueError(
@@ -539,7 +539,7 @@ _PAINT_BUILDERS = {
     2: buildPaintLinearGradient,
     3: buildPaintRadialGradient,
     4: buildPaintGlyph,
-    5: buildPaintColorGlyph,
+    5: buildPaintColrSlice,
     6: buildPaintTransform,
     7: buildPaintComposite,
 }
diff --git a/Lib/fontTools/ttLib/tables/otTables.py b/Lib/fontTools/ttLib/tables/otTables.py
index 25a2ed201..4d46a9a2c 100644
--- a/Lib/fontTools/ttLib/tables/otTables.py
+++ b/Lib/fontTools/ttLib/tables/otTables.py
@@ -1331,7 +1331,7 @@ class Paint(getFormatSwitchingBaseTableClass("uint8")):
 		PaintLinearGradient = 2
 		PaintRadialGradient = 3
 		PaintGlyph = 4
-		PaintColorGlyph = 5
+		PaintColrSlice = 5
 		PaintTransform = 6
 		PaintComposite = 7
 
diff --git a/Tests/colorLib/builder_test.py b/Tests/colorLib/builder_test.py
index c91e85418..35eb1c6a6 100644
--- a/Tests/colorLib/builder_test.py
+++ b/Tests/colorLib/builder_test.py
@@ -437,23 +437,23 @@ def test_buildPaintGlyph_from_dict():
     assert layer.Paint.r0.value == 4
 
 
-def test_buildPaintColorGlyph():
-    paint = builder.buildPaintColorGlyph("a")
-    assert paint.Format == ot.Paint.Format.PaintColorGlyph
+def test_buildPaintColrSlice():
+    paint = builder.buildPaintColrSlice("a")
+    assert paint.Format == ot.Paint.Format.PaintColrSlice
     assert paint.Glyph == "a"
     assert paint.FirstLayerIndex == 0
     assert paint.LastLayerIndex == 255
 
-    paint = builder.buildPaintColorGlyph("a", firstLayerIndex=1, lastLayerIndex=254)
+    paint = builder.buildPaintColrSlice("a", firstLayerIndex=1, lastLayerIndex=254)
     assert paint.FirstLayerIndex == 1
     assert paint.LastLayerIndex == 254
 
     with pytest.raises(ValueError, match="Expected first <= last index"):
-        builder.buildPaintColorGlyph("a", 255, 0)
+        builder.buildPaintColrSlice("a", 255, 0)
     with pytest.raises(OverflowError, match="firstLayerIndex .* out of range"):
-        builder.buildPaintColorGlyph("a", -1, 255)
+        builder.buildPaintColrSlice("a", -1, 255)
     with pytest.raises(OverflowError, match="lastLayerIndex .* out of range"):
-        builder.buildPaintColorGlyph("a", 0, 256)
+        builder.buildPaintColrSlice("a", 0, 256)
 
 
 def test_buildPaintTransform():
diff --git a/Tests/ttLib/tables/C_O_L_R_test.py b/Tests/ttLib/tables/C_O_L_R_test.py
index 67811f7f5..adaa9e383 100644
--- a/Tests/ttLib/tables/C_O_L_R_test.py
+++ b/Tests/ttLib/tables/C_O_L_R_test.py
@@ -324,14 +324,14 @@ COLR_V1_XML = [
     "    <LayerV1List>",
     "      <!-- LayerCount=1 -->",
     '      <Paint index="0" Format="7"><!-- PaintComposite -->',
-    '        <SourcePaint Format="5"><!-- PaintColorGlyph -->',
+    '        <SourcePaint Format="5"><!-- PaintColrSlice -->',
     '          <Glyph value="glyph00010"/>',
     '          <FirstLayerIndex value="0"/>',
     '          <LastLayerIndex value="255"/>',
     "        </SourcePaint>",
     '        <CompositeMode value="src_over"/>',
     '        <BackdropPaint Format="6"><!-- PaintTransform -->',
-    '          <Paint Format="5"><!-- PaintColorGlyph -->',
+    '          <Paint Format="5"><!-- PaintColrSlice -->',
     '            <Glyph value="glyph00010"/>',
     '            <FirstLayerIndex value="0"/>',
     '            <LastLayerIndex value="255"/>',