The Spike Tape Color Code: What Pros Actually Use (Yellow, Orange, Pink, Green, Blue)
Yellow, orange, pink, green, blue.
Each one means something.
Walk into any professional theatre, broadcast set, or trade-show stage and you'll see fluorescent tape in five colors stuck to the deck. Yellow for the primary actor blocking. Orange for the understudy. Pink for the camera lock-off. Green for the safe-walk path. Blue for audio cables. These aren't arbitrary — they're conventions built across decades by lighting designers, stage managers, and gaffers solving the same problem the same way.
If you're new to spike tape, the convention saves you from inventing it. If you've worked shows for years, it saves you from explaining it to every new crew member. Here's how each color is used, where the convention comes from, and what to buy.
The product: MegaTape UT120 Fluorescent. Writable matte gaffer in five high-vis colors. 1-inch wide, 50-yard rolls. Takes Sharpie, paint pen, or grease pencil. Manufactured in the Netherlands, stocked in Evans, GA.
The five-color code
Yellow
Primary blocking. Main actor marks. The "real" position. The most-used color on any show.
Orange
Secondary set. Understudy marks. Props placement. Anything that's "version 2" of the primary.
Pink
Camera marks. Broadcast lock-offs. Lavalier mic placement. Anything camera-aware.
Green
Safe-walk paths. Backstage routing. Emergency exit lanes. "Walk here, it's clear."
Blue
Audio cable runs. Mic line marking. Sometimes used for secondary set or alt-block.
Where the conventions come from
The color code isn't standardized by any official body — there's no IATSE rule book that mandates yellow for primary blocking. It's an emergent convention. Lighting designers needed something visible under stage washes; stage managers needed something they could mark on at 2 AM with a Sharpie; gaffers needed something the camera wouldn't blow out.
Yellow became the default because it's the brightest under tungsten and the easiest to see in low light. Pink got camera duty because it reads on most film stocks and digital sensors without picking up the glow that bright yellow can throw. Green for safety is universal — pulled directly from emergency exit signage. Blue for audio is a holdover from broadcast wiring conventions where cable colors map to signal type.
Different houses and different unions sometimes invert pink and orange, or use red instead of orange. If you're walking into a new room, ask the stage manager what their convention is. But the five-color UT120 Fluorescent set ships in the colors that work for almost every house, because those are the ones the conventions converged on.
What makes it writable
UT120 Fluorescent is a matte gaffer cloth backing with a fluorescent surface coating that accepts ink. A standard Sharpie writes on it cleanly. A white paint pen reads on the darker colors (green, blue). Grease pencil works for marks you want to erase between scenes. Standard glossy fluorescent vinyl — the cheap stuff — beads up under marker and is useless for writing actor names, scene numbers, or take cues.
The "matte gaffer + writable" combination is what separates a real spike tape from gaffer tape that happens to be colored. Look for "writable" or "matte fluorescent" in the spec. If it's glossy, it's not real spike.
Buy the right tape
Writable Spike Tape, 5 colors
1″ x 50 yd. Yellow, orange, pink, green, blue. Writable matte gaffer. Hand-tearable, low-residue, doesn't reflect under stage lighting.
Writable Matte Gaffer (Black, White)
Same writable backing in black and white. For console tape, set-mark labels, anywhere you need a writable gaffer that's not fluorescent.
All Gaffer & Spike Tape
UT80 standard gaffer, UT120 matte and fluorescent, all sizes and colors in stock at Evans, GA.
Common mistakes
Using regular electrical tape for spike marks. Vinyl stretches over time, lifts at the corners, and is invisible under stage lighting. You'll lose the mark before the dress rehearsal.
Using glossy fluorescent vinyl labeled as "spike tape." If it's shiny, it'll catch lighting and read as a hotspot on camera. And you can't write on it.
Buying 1/2-inch tape when you need 1-inch. Half-inch reads too thin from the booth and from FOH. One-inch is the standard for spike marks. Use half-inch only for fine work on prop labels or rack marking.
Not labeling spike marks. A mark you laid down at first run-through is useless three weeks later if you didn't write the scene number, the actor name, or the cue on it. Writable spike tape exists for a reason — use it.
FAQ
What's the difference between spike tape and gaffer tape?
Spike tape is a subset of gaffer tape — specifically the fluorescent or writable variants used for floor marks. Standard gaffer (MegaTape UT80) is matte black, white, or grey. Spike tape (MegaTape UT120 Fluorescent) is the same matte cloth backing in high-vis colors.
Can you write on fluorescent spike tape?
Yes, if you buy the writable variant. MegaTape UT120 Fluorescent is matte and writable. Sharpie, paint pen, grease pencil all work.
What size do most theatres use for spike marks?
1-inch x 50 yd rolls are the standard. Half-inch is for fine work; 2-inch is for visible markers from a distance (e.g., truck loading marks).
How long does spike tape stay down?
MegaTape UT120 holds for the duration of a typical theatrical run (weeks). For multi-month installs, replace once when the adhesive starts to lift at the corners.
