Why your green is 3 different greens
The ute, the polos and the website are made by 4 unrelated colour systems, and a hex code only speaks to one of them. Here’s what each supplier actually needs, and the 4 lines to put on a job sheet so nobody has to guess again.
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Park the ute next to a bloke wearing one of your polos, on a day you happen to have a quote open on the laptop. Three greens. All of them yours, none of them the same.
Nobody made a mistake. Everyone did the only thing they could with what you sent them.
4 systems that have nothing to do with each other
Your screen makes colour out of light
A monitor emits red, green and blue and mixes them in your eye. A hex code like #1B7A45 is just a set of 3 dials on that mixer. Because the colour is light rather than material, a screen can produce greens that glow. Nothing you own in the physical world glows.
The other catch is that no 2 screens agree. Phones in particular push saturation hard, which is why the logo looks best on your phone and never looks like that again.
Paper is 4 inks laid over each other
Standard printing uses cyan, magenta, yellow and black. Everything on the page is made from dots of those 4, which is why a print value has 4 numbers rather than 3.
Some screen colours can’t be reached with those inks at all. Bright greens, hot oranges and electric blues are the usual casualties. The printer doesn’t refuse the job. He prints the nearest thing 4 inks can do, and that is the moment your green quietly moves.
The way around it is a spot colour, which is ink mixed to a recipe before it goes on the press instead of being built out of dots. It costs more and it’s consistent. On a run of invoices nobody bothers. On a shopfront sign it’s worth asking about.
Cut vinyl is a colour you can only choose, not mix
The signage on your ute isn’t printed. It’s a coloured film that comes off a roll and gets cut to shape. 3M, Avery and Oracal each publish a book of what they make, and your signwriter has one on the counter.
That book is the entire range of possible answers. He can’t mix you a green. He picks the closest one that exists, and if you gave him a screenshot, “closest” is his judgement made under the lights in his shop.
Two more things live here. Gloss and matte versions of the same film read as different colours to the eye. And vinyl fades in Australian sun over a few years, at different rates for different colours, so a panel replaced in year 4 rarely matches the one beside it.
Embroidery is a number out of a thread catalogue
A shirt logo is stitched with thread that already exists in a fixed range. Madeira, Isacord and Robison-Anton all number their colours, and the embroiderer works off a card of physical samples.
So the honest answer to “what green are the polos” is a catalogue number. Not a hex. There’s no way to convert one into the other, because thread reflects light off a twisted filament and a screen doesn’t.
Why a hex code on its own ends in a mismatch
Because 3 of the 4 systems can’t read it. The website is the only place a hex is the actual instruction. Everywhere else somebody is looking at your hex on his own uncalibrated screen and choosing the nearest thing he can physically make.
Four suppliers doing that independently produce 4 near misses in 4 different directions. That isn’t sloppiness. It’s arithmetic.
Sending a photo of the ute is worse again. A phone camera has already made its own decisions about white balance and saturation, so the supplier is now matching a photograph of a colour rather than the colour.
There’s a name for the thing that catches people who did try to match properly: metamerism. Two colours can match under the fluoros in a workshop and visibly disagree in daylight. Approve colour outside, and at the size it’ll be used.
The 4 lines that end the argument
One page, one line per colour, 4 values on each line. That’s what a brand colour actually is once it leaves a screen.
| Value | Who needs it | What it looks like |
|---|---|---|
| Hex | Website, email signature, anything on a screen | #1B7A45 |
| CMYK | Printer: quotes, invoices, cards, flyers | 88 / 25 / 90 / 12 |
| Vinyl | Signwriter: ute, trailer, site boards | Brand and colour number read off his own book |
| Thread | Embroiderer: polos, jackets, caps | Thread brand and catalogue number |
Keep the list short. 2 colours plus black and white does everything a trade business needs, and there’s a hip-pocket reason for it. Screen printing burns a screen per colour and cut vinyl is a separate cut and a separate layer per colour. A 4-colour mark costs more on every reorder, forever.
How to fill in the 3 lines you don’t have
If all you’ve got is a hex, the other three take an afternoon.
- CMYK: ask your printer to convert it and send a printed proof, not a PDF on screen. Write the 4 numbers off the proof onto your sheet.
- Vinyl: take something physical to the sign shop. A printed proof, or the actual ute. Have him hold his swatch book against it in daylight and tell you the name and number he’d use. Write it down, and ask for an offcut of that film to staple to the sheet.
- Thread: same move at the embroiderer. He has a card of real thread. Hold it against the vinyl offcut rather than against your phone, and take the number.
You now have a physical reference and 4 written values. Photograph the sheet, keep the original in the office, and send the photo to every new supplier before he starts.
3 habits that stop it drifting again
- Approve a physical sample before a full run. A printed proof, a scrap of cut vinyl, a stitch-out on the same fabric as the shirts. Embroidery especially, because thread on a polo looks different from thread on a cap.
- Never let a supplier match off another supplier’s work. Everything comes from the sheet. Otherwise year 3 is a copy of year 2, which was a copy of year 1.
- Order shirts in one run where you can. Dye lots move. Two batches of the same garment 8 months apart can differ more than the logo on them does.
If they’ve already drifted
Pick the one that’s hardest and most expensive to change, which is almost always the vehicles, and make that the truth. Read its actual vinyl number off the sign shop’s records, build the sheet around it, and bring the rest into line as things get reordered. You don’t repaint anything. You stop the next order making it worse.
The one worth fixing straight away is the website, because it’s the cheapest change on the list and it’s the version most customers see first. It’s also the easiest to lock down, since a site can be generated from a single file holding the values instead of having the green typed in by hand in 6 places. Ask whoever builds yours if that’s how they do it, because a colour set once can’t drift.
Write the sheet before you order anything else. It’s one page and it outlives every supplier on it.
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One green written down 4 ways is a brand. Four near misses is a logo.
Before you spend anything on branding it is worth knowing whether colour is the thing costing you work. The free check looks at what a customer actually finds when they search you, and says which part is holding you back.
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