diff --git a/code/ATMOSPHERICS/atmospherics.dm b/code/ATMOSPHERICS/atmospherics.dm
index 7a7b7b16949..e6dc792d33a 100644
--- a/code/ATMOSPHERICS/atmospherics.dm
+++ b/code/ATMOSPHERICS/atmospherics.dm
@@ -61,21 +61,21 @@ Pipelines + Other Objects -> Pipe network
 	if(can_unwrench && istype(W, /obj/item/weapon/wrench))
 		var/turf/T = src.loc
 		if (level==1 && isturf(T) && T.intact)
-			user << "\red You must remove the plating first."
+			user << "<span class='danger'>You must remove the plating first.</span>"
 			return 1
 		var/datum/gas_mixture/int_air = return_air()
 		var/datum/gas_mixture/env_air = loc.return_air()
 		if ((int_air.return_pressure()-env_air.return_pressure()) > 2*ONE_ATMOSPHERE)
-			user << "\red You cannot unwrench this [src], it is too exerted due to internal pressure."
+			user << "<span class='danger'>You cannot unwrench this [src], it is too exerted due to internal pressure.</span>"
 			add_fingerprint(user)
 			return 1
 		playsound(src.loc, 'sound/items/Ratchet.ogg', 50, 1)
-		user << "\blue You begin to unfasten \the [src]..."
+		user << "<span class='notice'>You begin to unfasten \the [src]...</span>"
 		add_fingerprint(user)
 		if (do_after(user, 40))
 			user.visible_message( \
 				"[user] unfastens \the [src].", \
-				"\blue You have unfastened \the [src].", \
+				"<span class='notice'>You have unfastened \the [src].</span>", \
 				"You hear ratchet.")
 			var/obj/item/pipe/newpipe = new(loc, make_from=src)
 			transfer_fingerprints_to(newpipe)
diff --git a/code/ATMOSPHERICS/components/valve.dm b/code/ATMOSPHERICS/components/valve.dm
index 707e971c290..09ba31154d6 100644
--- a/code/ATMOSPHERICS/components/valve.dm
+++ b/code/ATMOSPHERICS/components/valve.dm
@@ -268,7 +268,7 @@ obj/machinery/atmospherics/valve/attack_hand(mob/user as mob)
 
 /obj/machinery/atmospherics/valve/digital/attack_hand(mob/user as mob)
 	if(!src.allowed(user))
-		user << "\red Access denied."
+		user << "<span class='danger'>Access denied</span>"
 		return
 	..()
 
diff --git a/code/ATMOSPHERICS/pipes.dm b/code/ATMOSPHERICS/pipes.dm
index 2c901dafc29..571f7bda15a 100644
--- a/code/ATMOSPHERICS/pipes.dm
+++ b/code/ATMOSPHERICS/pipes.dm
@@ -138,7 +138,7 @@
 	else return 1
 
 /obj/machinery/atmospherics/pipe/simple/proc/burst()
-	src.visible_message("\red \bold [src] bursts!");
+	src.visible_message("<span class='userdanger'>[src] bursts!</span>");
 	playsound(src.loc, 'sound/effects/bang.ogg', 25, 1)
 	var/datum/effect/effect/system/harmless_smoke_spread/smoke = new
 	smoke.set_up(1,0, src.loc, 0)
diff --git a/code/game/machinery/pipe/construction.dm b/code/game/machinery/pipe/construction.dm
index 370a46a0073..74777c19c3b 100644
--- a/code/game/machinery/pipe/construction.dm
+++ b/code/game/machinery/pipe/construction.dm
@@ -250,7 +250,7 @@ Buildable meters
 
 	for(var/obj/machinery/atmospherics/M in src.loc)
 		if(M.initialize_directions & pipe_dir)	// matches at least one direction on either type of pipe
-			user << "\red There is already a pipe at that location."
+			user << "<span class='danger'>There is already a pipe at that location.</span>"
 			return 1
 	// no conflicts found
 
@@ -523,7 +523,7 @@ Buildable meters
 	playsound(src.loc, 'sound/items/Ratchet.ogg', 50, 1)
 	user.visible_message( \
 		"[user] fastens the [src].", \
-		"\blue You have fastened the [src].", \
+		"<span class='notice'>You have fastened the [src].</span>", \
 		"You hear ratchet.")
 	qdel(src)	// remove the pipe item
 
@@ -548,11 +548,11 @@ Buildable meters
 	if (!istype(W, /obj/item/weapon/wrench))
 		return ..()
 	if(!locate(/obj/machinery/atmospherics/pipe, src.loc))
-		user << "\red You need to fasten it to a pipe"
+		user << "<span class='danger'>You need to fasten it to a pipe</span>"
 		return 1
 	new/obj/machinery/meter( src.loc )
 	playsound(src.loc, 'sound/items/Ratchet.ogg', 50, 1)
-	user << "\blue You have fastened the meter to the pipe"
+	user << "<span class='notice'>You have fastened the meter to the pipe</span>"
 	qdel(src)
 
 #undef PIPE_SIMPLE_STRAIGHT