diff --git a/Makefile b/Makefile
new file mode 100644
index 00000000..766f6f95
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,2 @@
+test:
+	pytest --cov=rich tests/ -v
diff --git a/rich/color.py b/rich/color.py
index 19d2e898..3175ea5c 100644
--- a/rich/color.py
+++ b/rich/color.py
@@ -100,7 +100,7 @@ class Color(NamedTuple):
             assert self.number is not None
             return theme.ansi_colors[self.number]
         else:  # self.type == ColorType.DEFAULT:
-            assert self.number is not None
+            assert self.number is None
             return theme.foreground_color if foreground else theme.background_color
 
     @classmethod
@@ -159,10 +159,6 @@ class Color(NamedTuple):
             triplet = ColorTriplet(
                 int(color_24[0:2], 16), int(color_24[2:4], 16), int(color_24[4:6], 16)
             )
-            if not all(component <= 255 for component in triplet):
-                raise ColorParseError(
-                    f"color components must be <= 0xff (255) in {color!r}"
-                )
             return cls(color, ColorType.TRUECOLOR, triplet=triplet)
 
         else:  #  color_rgb:
@@ -262,7 +258,7 @@ def blend_rgb(
     return new_color
 
 
-if __name__ == "__main__":
+if __name__ == "__main__":  # pragma: no cover
 
     c = Color.parse("#ff0000")
     print(c.downgrade(ColorSystem.STANDARD))
diff --git a/tests/test_color.py b/tests/test_color.py
new file mode 100644
index 00000000..778179f3
--- /dev/null
+++ b/tests/test_color.py
@@ -0,0 +1,82 @@
+from rich.color import (
+    blend_rgb,
+    parse_rgb_hex,
+    Color,
+    ColorParseError,
+    ColorSystem,
+    ColorType,
+    ColorTriplet,
+)
+
+from rich import themes
+
+import pytest
+
+
+def test_str() -> None:
+    print(repr(str(Color.parse("red"))))
+    assert str(Color.parse("red")) == "\x1b[31m⬤  \x1b[0m<color 'red' (standard)>"
+
+
+def test_repr() -> None:
+    assert repr(Color.parse("red")) == "<color 'red' (standard)>"
+
+
+def test_system() -> None:
+    assert Color.parse("red").system == ColorSystem.STANDARD
+    assert Color.parse("#ff0000").system == ColorSystem.TRUECOLOR
+
+
+def test_truecolor() -> None:
+    assert Color.parse("#ff0000").get_truecolor(themes.DEFAULT) == ColorTriplet(
+        255, 0, 0
+    )
+    assert Color.parse("red").get_truecolor(themes.DEFAULT) == ColorTriplet(128, 0, 0)
+    assert Color.parse("1").get_truecolor(themes.DEFAULT) == ColorTriplet(128, 0, 0)
+    assert Color.parse("17").get_truecolor(themes.DEFAULT) == ColorTriplet(0, 0, 95)
+    assert Color.parse("default").get_truecolor(themes.DEFAULT) == ColorTriplet(0, 0, 0)
+    assert Color.parse("default").get_truecolor(
+        themes.DEFAULT, foreground=False
+    ) == ColorTriplet(255, 255, 255)
+
+
+def test_parse_success() -> None:
+    assert Color.parse("default") == Color("default", ColorType.DEFAULT, None, None)
+    assert Color.parse("red") == Color("red", ColorType.STANDARD, 1, None)
+    assert Color.parse("red+") == Color("red+", ColorType.EIGHT_BIT, 9, None)
+    assert Color.parse("100") == Color("100", ColorType.EIGHT_BIT, 100, None)
+    assert Color.parse("#112233") == Color(
+        "#112233", ColorType.TRUECOLOR, None, ColorTriplet(0x11, 0x22, 0x33)
+    )
+    assert Color.parse("rgb(90,100,110)") == Color(
+        "rgb(90,100,110)", ColorType.TRUECOLOR, None, ColorTriplet(90, 100, 110)
+    )
+
+
+def test_from_triplet() -> None:
+    assert Color.from_triplet(ColorTriplet(0x10, 0x20, 0x30)) == Color(
+        "#102030", ColorType.TRUECOLOR, None, ColorTriplet(0x10, 0x20, 0x30)
+    )
+
+
+def test_parse_error() -> None:
+    with pytest.raises(ColorParseError):
+        Color.parse("rgb(999,0,0)")
+    with pytest.raises(ColorParseError):
+        Color.parse("rgb(0,0)")
+    with pytest.raises(ColorParseError):
+        Color.parse("rgb(0,0,0,0)")
+    with pytest.raises(ColorParseError):
+        Color.parse("nosuchcolor")
+    with pytest.raises(ColorParseError):
+        Color.parse("#xxyyzz")
+
+
+def test_parse_rb_hex() -> None:
+    assert parse_rgb_hex("aabbcc") == ColorTriplet(0xAA, 0xBB, 0xCC)
+
+
+def test_blend_rgb() -> None:
+    assert blend_rgb(
+        ColorTriplet(10, 20, 30), ColorTriplet(30, 40, 50)
+    ) == ColorTriplet(20, 30, 40)