diff --git a/include/zeus/CColor.hpp b/include/zeus/CColor.hpp
index 73bde95..e5aece4 100644
--- a/include/zeus/CColor.hpp
+++ b/include/zeus/CColor.hpp
@@ -331,3 +331,16 @@ inline CColor operator*(float lhs, const CColor& rhs) { return CColor(simd<float
 
 inline CColor operator/(float lhs, const CColor& rhs) { return CColor(simd<float>(lhs) / rhs.mSimd).Clamp(); }
 } // namespace zeus
+
+namespace std {
+template <>
+struct hash<zeus::CColor> {
+  size_t operator()(const zeus::CColor& color) const noexcept {
+    size_t ret = std::hash<float>()(color.r());
+    zeus::hash_combine_impl(ret, std::hash<float>()(color.g()));
+    zeus::hash_combine_impl(ret, std::hash<float>()(color.b()));
+    zeus::hash_combine_impl(ret, std::hash<float>()(color.a()));
+    return ret;
+  }
+};
+}
\ No newline at end of file
diff --git a/include/zeus/Global.hpp b/include/zeus/Global.hpp
index 5eb25d6..303b33f 100644
--- a/include/zeus/Global.hpp
+++ b/include/zeus/Global.hpp
@@ -14,6 +14,11 @@ using simd = athena::simd<T>;
 using simd_floats = athena::simd_floats;
 using simd_doubles = athena::simd_doubles;
 #endif
+
+template <typename SizeT>
+constexpr void hash_combine_impl(SizeT& seed, SizeT value) {
+  seed ^= value + 0x9e3779b9 + (seed<<6) + (seed>>2);
+}
 } // namespace zeus
 
 constexpr int rotr(int x, int n) { return ((x >> n) | (x << (32 - n))); }