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diff --git a/glm/gtx/color_space.hpp b/glm/gtx/color_space.hpp
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+++ b/glm/gtx/color_space.hpp
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+/// @ref gtx_color_space
+/// @file glm/gtx/color_space.hpp
+///
+/// @see core (dependence)
+///
+/// @defgroup gtx_color_space GLM_GTX_color_space
+/// @ingroup gtx
+///
+/// Include <glm/gtx/color_space.hpp> to use the features of this extension.
+///
+/// Related to RGB to HSV conversions and operations.
+
+#pragma once
+
+// Dependency:
+#include "../glm.hpp"
+
+#if GLM_MESSAGES == GLM_ENABLE && !defined(GLM_EXT_INCLUDED)
+#	ifndef GLM_ENABLE_EXPERIMENTAL
+#		pragma message("GLM: GLM_GTX_color_space is an experimental extension and may change in the future. Use #define GLM_ENABLE_EXPERIMENTAL before including it, if you really want to use it.")
+#	else
+#		pragma message("GLM: GLM_GTX_color_space extension included")
+#	endif
+#endif
+
+namespace glm
+{
+	/// @addtogroup gtx_color_space
+	/// @{
+
+	/// Converts a color from HSV color space to its color in RGB color space.
+	/// @see gtx_color_space
+	template<typename T, qualifier Q>
+	GLM_FUNC_DECL vec<3, T, Q> rgbColor(
+		vec<3, T, Q> const& hsvValue);
+
+	/// Converts a color from RGB color space to its color in HSV color space.
+	/// @see gtx_color_space
+	template<typename T, qualifier Q>
+	GLM_FUNC_DECL vec<3, T, Q> hsvColor(
+		vec<3, T, Q> const& rgbValue);
+
+	/// Build a saturation matrix.
+	/// @see gtx_color_space
+	template<typename T>
+	GLM_FUNC_DECL mat<4, 4, T, defaultp> saturation(
+		T const s);
+
+	/// Modify the saturation of a color.
+	/// @see gtx_color_space
+	template<typename T, qualifier Q>
+	GLM_FUNC_DECL vec<3, T, Q> saturation(
+		T const s,
+		vec<3, T, Q> const& color);
+
+	/// Modify the saturation of a color.
+	/// @see gtx_color_space
+	template<typename T, qualifier Q>
+	GLM_FUNC_DECL vec<4, T, Q> saturation(
+		T const s,
+		vec<4, T, Q> const& color);
+
+	/// Compute color luminosity associating ratios (0.33, 0.59, 0.11) to RGB canals.
+	/// @see gtx_color_space
+	template<typename T, qualifier Q>
+	GLM_FUNC_DECL T luminosity(
+		vec<3, T, Q> const& color);
+
+	/// @}
+}//namespace glm
+
+#include "color_space.inl"