diff --git a/pkgs/development/python-modules/colormath2/default.nix b/pkgs/development/python-modules/colormath2/default.nix
new file mode 100644
index 000000000000..30f081f8cb62
--- /dev/null
+++ b/pkgs/development/python-modules/colormath2/default.nix
@@ -0,0 +1,41 @@
+{
+  lib,
+  buildPythonPackage,
+  fetchFromGitHub,
+  setuptools,
+  networkx,
+  numpy,
+  pytestCheckHook,
+}:
+
+buildPythonPackage rec {
+  pname = "colormath2";
+  version = "3.0.3";
+  pyproject = true;
+
+  src = fetchFromGitHub {
+    owner = "bkmgit";
+    repo = "python-colormath2";
+    tag = version;
+    hash = "sha256-G8b0L8A2RzbVQFPNg2fuBklqTNjo3yqvek/+GnqtsHc=";
+  };
+
+  build-system = [ setuptools ];
+
+  dependencies = [
+    networkx
+    numpy
+  ];
+
+  nativeCheckInputs = [ pytestCheckHook ];
+
+  pythonImportsCheck = [ "colormath2" ];
+
+  meta = {
+    description = "Color math and conversion library (fork)";
+    homepage = "https://github.com/bkmgit/python-colormath2";
+    changelog = "https://github.com/bkmgit/python-colormath2/releases/tag/${version}";
+    license = lib.licenses.bsd3;
+    maintainers = with lib.maintainers; [ apraga ];
+  };
+}
diff --git a/pkgs/development/python-modules/spectra/default.nix b/pkgs/development/python-modules/spectra/default.nix
index f07c17a3bd16..8090bd49dd1f 100644
--- a/pkgs/development/python-modules/spectra/default.nix
+++ b/pkgs/development/python-modules/spectra/default.nix
@@ -1,40 +1,29 @@
 {
-  buildPythonPackage,
-  colormath,
-  fetchFromGitHub,
-  fetchpatch2,
   lib,
-  pytestCheckHook,
+  buildPythonPackage,
+  fetchFromGitHub,
   setuptools,
+  colormath2,
+  pytestCheckHook,
 }:
 
 buildPythonPackage rec {
   pname = "spectra";
-  version = "0.0.11";
+  version = "0.1.0";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "jsvine";
     repo = "spectra";
     tag = "v${version}";
-    hash = "sha256-4A2TWTxYqckJ3DX5cd2KN3KXcmO/lQdXmOEnGi76RsA=";
+    hash = "sha256-PS5p9IR3v6+Up5Fcq8mhkprVgXigD6PZUF4/6hbv7NI=";
   };
 
-  patches = [
-    # https://github.com/jsvine/spectra/pull/21
-    (fetchpatch2 {
-      name = "nose-to-pytest.patch";
-      url = "https://github.com/jsvine/spectra/commit/50037aba16dac4bf0fb7ffbd787d0e6b906e8a4b.patch";
-      hash = "sha256-cMoIbjRwcZjvhiIOcJR7NmIAOaqpr/e5eh9+sPGKqos=";
-      excludes = [ ".github/*" ];
-    })
-  ];
-
   build-system = [
     setuptools
   ];
 
-  propagatedBuildInputs = [ colormath ];
+  dependencies = [ colormath2 ];
 
   nativeCheckInputs = [
     pytestCheckHook
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 29bda8128749..402446041f29 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -2568,6 +2568,8 @@ self: super: with self; {
 
   colormath = callPackage ../development/python-modules/colormath { };
 
+  colormath2 = callPackage ../development/python-modules/colormath2 { };
+
   colorspacious = callPackage ../development/python-modules/colorspacious { };
 
   colorthief = callPackage ../development/python-modules/colorthief { };