diff --git a/code/__defines/lighting.dm b/code/__defines/lighting.dm
index f311ea4aa2..30f2dac84d 100644
--- a/code/__defines/lighting.dm
+++ b/code/__defines/lighting.dm
@@ -49,3 +49,28 @@
 #define CL_MATRIX_CG 18
 #define CL_MATRIX_CB 19
 #define CL_MATRIX_CA 20
+
+//Some defines to generalise colours used in lighting.
+//Important note on colors. Colors can end up significantly different from the basic html picture, especially when saturated
+#define LIGHT_COLOR_RED        "#FA8282" //Warm but extremely diluted red. rgb(250, 130, 130)
+#define LIGHT_COLOR_GREEN      "#64C864" //Bright but quickly dissipating neon green. rgb(100, 200, 100)
+#define LIGHT_COLOR_BLUE       "#6496FA" //Cold, diluted blue. rgb(100, 150, 250)
+
+#define LIGHT_COLOR_BLUEGREEN  "#7DE1AF" //Light blueish green. rgb(125, 225, 175)
+#define LIGHT_COLOR_CYAN       "#7DE1E1" //Diluted cyan. rgb(125, 225, 225)
+#define LIGHT_COLOR_LIGHT_CYAN "#40CEFF" //More-saturated cyan. rgb(64, 206, 255)
+#define LIGHT_COLOR_DARK_BLUE  "#6496FA" //Saturated blue. rgb(51, 117, 248)
+#define LIGHT_COLOR_PINK       "#E17DE1" //Diluted, mid-warmth pink. rgb(225, 125, 225)
+#define LIGHT_COLOR_YELLOW     "#E1E17D" //Dimmed yellow, leaning kaki. rgb(225, 225, 125)
+#define LIGHT_COLOR_BROWN      "#966432" //Clear brown, mostly dim. rgb(150, 100, 50)
+#define LIGHT_COLOR_ORANGE     "#FA9632" //Mostly pure orange. rgb(250, 150, 50)
+#define LIGHT_COLOR_PURPLE     "#952CF4" //Light Purple. rgb(149, 44, 244)
+#define LIGHT_COLOR_LAVENDER   "#9B51FF" //Less-saturated light purple. rgb(155, 81, 255)
+
+//These ones aren't a direct colour like the ones above, because nothing would fit
+#define LIGHT_COLOR_FIRE       "#FAA019" //Warm orange color, leaning strongly towards yellow. rgb(250, 160, 25)
+#define LIGHT_COLOR_LAVA       "#C48A18" //Very warm yellow, leaning slightly towards orange. rgb(196, 138, 24)
+#define LIGHT_COLOR_FLARE      "#FA644B" //Bright, non-saturated red. Leaning slightly towards pink for visibility. rgb(250, 100, 75)
+#define LIGHT_COLOR_SLIME_LAMP "#AFC84B" //Weird color, between yellow and green, very slimy. rgb(175, 200, 75)
+#define LIGHT_COLOR_TUNGSTEN   "#FAE1AF" //Extremely diluted yellow, close to skin color (for some reason). rgb(250, 225, 175)
+#define LIGHT_COLOR_HALOGEN    "#F0FAFA" //Barely visible cyan-ish hue, as the doctor prescribed. rgb(240, 250, 250)
\ No newline at end of file
diff --git a/code/game/objects/items/devices/flashlight.dm b/code/game/objects/items/devices/flashlight.dm
index fd997a03c5..151b762d7c 100644
--- a/code/game/objects/items/devices/flashlight.dm
+++ b/code/game/objects/items/devices/flashlight.dm
@@ -321,7 +321,7 @@
 	w_class = ITEMSIZE_SMALL
 	brightness_on = 8 // Pretty bright.
 	light_power = 3
-	light_color = "#e58775"
+	light_color = LIGHT_COLOR_FLARE
 	icon_state = "flare"
 	item_state = "flare"
 	action_button_name = null //just pull it manually, neckbeard.
diff --git a/code/game/objects/items/stacks/marker_beacons.dm b/code/game/objects/items/stacks/marker_beacons.dm
new file mode 100644
index 0000000000..9978ef6b0d
--- /dev/null
+++ b/code/game/objects/items/stacks/marker_beacons.dm
@@ -0,0 +1,138 @@
+/*****************Marker Beacons**************************/
+var/list/marker_beacon_colors = list(
+"Random" = FALSE, //not a true color, will pick a random color
+"Burgundy" = LIGHT_COLOR_FLARE,
+"Bronze" = LIGHT_COLOR_ORANGE,
+"Yellow" = LIGHT_COLOR_YELLOW,
+"Lime" = LIGHT_COLOR_SLIME_LAMP,
+"Olive" = LIGHT_COLOR_GREEN,
+"Jade" = LIGHT_COLOR_BLUEGREEN,
+"Teal" = LIGHT_COLOR_LIGHT_CYAN,
+"Cerulean" = LIGHT_COLOR_BLUE,
+"Indigo" = LIGHT_COLOR_DARK_BLUE,
+"Purple" = LIGHT_COLOR_PURPLE,
+"Violet" = LIGHT_COLOR_LAVENDER,
+"Fuchsia" = LIGHT_COLOR_PINK
+)
+
+/obj/item/stack/marker_beacon
+	name = "marker beacons"
+	singular_name = "marker beacon"
+	desc = "Prismatic path illumination devices. Used by explorers and miners to mark paths and warn of danger."
+	description_info = "Use inhand to drop one marker beacon. You can pick them up again with an empty hand or \
+	hitting them with this marker stack. Alt-click to select a specific color."
+	icon = 'icons/obj/lighting.dmi'
+	icon_state = "marker"
+	max_amount = 100
+	no_variants = TRUE
+	var/picked_color = "random"
+
+/obj/item/stack/marker_beacon/ten
+	amount = 10
+
+/obj/item/stack/marker_beacon/thirty
+	amount = 30
+
+/obj/item/stack/marker_beacon/hundred
+	amount = 100
+
+/obj/item/stack/marker_beacon/initialize()
+	. = ..()
+	update_icon()
+
+/obj/item/stack/marker_beacon/examine(mob/user)
+	..()
+	to_chat(user, "<span class='notice'>Use in-hand to place a [singular_name].</span>")
+	to_chat(user, "<span class='notice'>Alt-click to select a color. Current color is [picked_color].</span>")
+
+/obj/item/stack/marker_beacon/update_icon()
+	icon_state = "[initial(icon_state)][lowertext(picked_color)]"
+
+/obj/item/stack/marker_beacon/attack_self(mob/user)
+	if(!isturf(user.loc))
+		to_chat(user, "<span class='warning'>You need more space to place a [singular_name] here.</span>")
+		return
+	if(locate(/obj/structure/marker_beacon) in user.loc)
+		to_chat(user, "<span class='warning'>There is already a [singular_name] here.</span>")
+		return
+	if(use(1))
+		to_chat(user, "<span class='notice'>You activate and anchor [amount ? "a":"the"] [singular_name] in place.</span>")
+		playsound(user, 'sound/machines/click.ogg', 50, 1)
+		var/obj/structure/marker_beacon/M = new(user.loc, picked_color)
+		transfer_fingerprints_to(M)
+
+/obj/item/stack/marker_beacon/AltClick(mob/living/user)
+	if(user.incapacitated() || !istype(user))
+		to_chat(user, "<span class='warning'>You can't do that right now!</span>")
+		return
+	if(!in_range(src, user))
+		return
+	var/input_color = input(user, "Choose a color.", "Beacon Color") as null|anything in marker_beacon_colors
+	if(user.incapacitated() || !istype(user) || !in_range(src, user))
+		return
+	if(input_color)
+		picked_color = input_color
+		update_icon()
+
+/obj/structure/marker_beacon
+	name = "marker beacon"
+	desc = "A prismatic path illumination device. It is anchored in place and glowing steadily."
+	icon = 'icons/obj/lighting.dmi'
+	icon_state = "marker"
+//	layer = BELOW_OPEN_DOOR_LAYER
+	anchored = TRUE
+	light_range = 2
+	light_power = 3
+	var/remove_speed = 15
+	var/picked_color
+
+/obj/structure/marker_beacon/New(newloc, set_color)
+	. = ..()
+	picked_color = set_color
+	update_icon()
+
+/obj/structure/marker_beacon/examine(mob/user)
+	..()
+	to_chat(user, "<span class='notice'>Alt-click to select a color. Current color is [picked_color].</span>")
+
+/obj/structure/marker_beacon/update_icon()
+	while(!picked_color || !marker_beacon_colors[picked_color])
+		picked_color = pick(marker_beacon_colors)
+	icon_state = "[initial(icon_state)][lowertext(picked_color)]-on"
+	set_light(light_range, light_power, marker_beacon_colors[picked_color])
+
+/obj/structure/marker_beacon/attack_hand(mob/living/user)
+	to_chat(user, "<span class='notice'>You start picking [src] up...</span>")
+	if(do_after(user, remove_speed, target = src))
+		var/obj/item/stack/marker_beacon/M = new(loc)
+		M.picked_color = picked_color
+		M.update_icon()
+		transfer_fingerprints_to(M)
+		if(user.put_in_hands(M, TRUE)) //delete the beacon if it fails
+			playsound(src, 'sound/items/deconstruct.ogg', 50, 1)
+			qdel(src) //otherwise delete us
+
+/obj/structure/marker_beacon/attackby(obj/item/I, mob/user, params)
+	if(istype(I, /obj/item/stack/marker_beacon))
+		var/obj/item/stack/marker_beacon/M = I
+		to_chat(user, "<span class='notice'>You start picking [src] up...</span>")
+		if(do_after(user, remove_speed, target = src) && M.amount + 1 <= M.max_amount)
+			M.add(1)
+			playsound(src, 'sound/items/deconstruct.ogg', 50, 1)
+			qdel(src)
+	else
+		return ..()
+
+/obj/structure/marker_beacon/AltClick(mob/living/user)
+	..()
+	if(user.incapacitated() || !istype(user))
+		to_chat(user, "<span class='warning'>You can't do that right now!</span>")
+		return
+	if(!in_range(src, user))
+		return
+	var/input_color = input(user, "Choose a color.", "Beacon Color") as null|anything in marker_beacon_colors
+	if(user.incapacitated() || !istype(user) || !in_range(src, user))
+		return
+	if(input_color)
+		picked_color = input_color
+		update_icon()
diff --git a/icons/obj/lighting.dmi b/icons/obj/lighting.dmi
index cb4d4042c6..c761dacf1e 100644
Binary files a/icons/obj/lighting.dmi and b/icons/obj/lighting.dmi differ
diff --git a/maps/southern_cross/structures/closets/misc.dm b/maps/southern_cross/structures/closets/misc.dm
index 30b8186f5d..c286835eb7 100644
--- a/maps/southern_cross/structures/closets/misc.dm
+++ b/maps/southern_cross/structures/closets/misc.dm
@@ -51,6 +51,7 @@
 	new /obj/item/device/geiger(src)
 	new /obj/item/weapon/cell/device(src)
 	new /obj/item/device/radio(src)
+	new /obj/item/stack/marker_beacon/thirty(src)
 	return
 
 /obj/structure/closet/secure_closet/sar
diff --git a/polaris.dme b/polaris.dme
index 3006bbcc3a..c22e8d991b 100644
--- a/polaris.dme
+++ b/polaris.dme
@@ -873,6 +873,7 @@
 #include "code\game\objects\items\robot\robot_parts.dm"
 #include "code\game\objects\items\robot\robot_upgrades.dm"
 #include "code\game\objects\items\stacks\fifty_spawner.dm"
+#include "code\game\objects\items\stacks\marker_beacons.dm"
 #include "code\game\objects\items\stacks\matter_synth.dm"
 #include "code\game\objects\items\stacks\medical.dm"
 #include "code\game\objects\items\stacks\nanopaste.dm"