diff --git a/flake.nix b/flake.nix
index 71474f5..3a4e0c8 100644
--- a/flake.nix
+++ b/flake.nix
@@ -107,6 +107,25 @@
 			timeZone = "Europe/Moscow";
 		};
 
+		# Colors.
+		nixosModules.color = {
+			aqua        = "689d68";
+			bg          = "1d2021";
+			bg_1        = "504945";
+			blue        = "458588";
+			blue_faded  = "076678";
+			darkgray    = "282828";
+			fg          = "ebdbb2";
+			fg_1        = "fbf1c7";
+			fg_2        = "d5c4a1";
+			gray        = "a89984";
+			green       = "98971a";
+			purple      = "b16286";
+			red         = "cc241d";
+			transparent = "ffffff00";
+			yellow      = "b8bb26";
+		};
+
 		# Common modules used across all hosts.
 		nixosModules.common.imports = [
 			./module/common/AutoUpdate.nix
@@ -149,6 +168,7 @@
 
 			specialArgs = {
 				const  = self.nixosModules.const;
+				color  = self.nixosModules.color;
 				flake  = self;
 				inputs = inputs;
 			};
@@ -261,6 +281,7 @@
 			];
 			extraSpecialArgs = {
 				const  = self.nixosModules.const;
+				color  = self.nixosModules.color;
 				flake  = self;
 				inputs = inputs;
 			};
diff --git a/module/common/Tmux.nix b/module/common/Tmux.nix
index 5e4c3a5..512888b 100644
--- a/module/common/Tmux.nix
+++ b/module/common/Tmux.nix
@@ -1,9 +1,13 @@
-{ pkgs, ... }: let
+{ pkgs, color, ... }: let
 	script = pkgs.writeShellScriptBin "tmux_script" (builtins.readFile ./tmux/Script.sh);
 in {
 	programs.tmux = {
 		enable = true;
-		extraConfig = builtins.readFile ./tmux/tmux.conf;
+		extraConfig = ''
+			set -g @COLOR_BG #${color.bg}
+			set -g @COLOR_DARKGRAY #${color.darkgray}
+			set -g @COLOR_YELLOW #${color.yellow}
+		'' + (builtins.readFile ./tmux/tmux.conf);
 	};
 	environment.systemPackages = [ script ];
 }
diff --git a/module/common/tmux/tmux.conf b/module/common/tmux/tmux.conf
index 6a4fbef..522b2fd 100644
--- a/module/common/tmux/tmux.conf
+++ b/module/common/tmux/tmux.conf
@@ -21,7 +21,7 @@ bind -T copy-mode-vi v send      -X begin-selection
 bind -T copy-mode-vi y send-keys -X copy-pipe-and-cancel "pbcopy"
 
 # Selection style.
-set -g mode-style "fg=#282828 bg=#b8bb26 bold"
+set -g mode-style "fg=#{@COLOR_DARKGRAY} bg=#{@COLOR_YELLOW} bold"
 
 # Pane style.
 set -g pane-border-style "fg=#504945"