The Colour That Looks Wrong on a Van

Why they differ

A screen makes colour by emitting light. Ink and vinyl make it by absorbing some light and reflecting the rest.

Those are different physical processes with different ranges, and some colours one can produce are simply outside what the other can.

Bright saturated colours, particularly vivid blues, greens and oranges, are the worst affected. A colour that glows on a screen frequently prints as something duller.

Which means the question is not how to match them exactly. It is how close you can get and what to accept.

The systems involved

• Screen colour, specified as a hex value or RGB.
• Print colour, mixed from four inks and specified in CMYK.
• Spot colour, a pre-mixed ink specified by a reference number.
• Vinyl, a manufactured sheet in a fixed range of colours.
• Paint, mixed to its own system entirely.

The fourth catches people out most often. Vehicle graphics are frequently cut from coloured vinyl, which comes in a catalogue of stocked colours rather than being mixed to order.

Which means the practical question for a van is which stocked vinyl is closest, not what the exact value is.

Specifying properly

Every brand needs its colours defined in more than one system, recorded once.

A hex value for screen. A CMYK breakdown for print. A spot reference if the colour matters enough to justify one.

Those are not conversions of each other so much as decisions: the best available version of the colour in each system, chosen by looking rather than calculated.

An automatic conversion from screen to print produces a starting point and frequently a disappointing result, particularly for saturated colours.

Getting a designer or printer to select the print version by eye, against a physical reference, is worth the small cost once.

A worked example

A business whose brand colour was a bright teal chosen on a monitor.

The printed leaflets came back noticeably duller, which was accepted as inevitable.

The van, cut from vinyl, was a different teal again, greener than either.

Three versions of the same brand were now visible together whenever the van was parked outside a job with the leaflets in the window.

The resolution was choosing the vinyl first, since it had the fewest options, then adjusting the print specification to match it and the screen value to sit close to both.

Nobody could tell the remaining difference between the three, and the whole exercise cost an afternoon and the price of one sample.

Choose for the constrained medium first

The practical principle that resolves most of this.

Screen colour is almost unlimited. Print is more constrained. Vinyl and paint are constrained to a catalogue.

Which means choosing on the screen and hoping the others follow is starting from the medium with the most freedom, and every subsequent step is a compromise.

Starting from the most constrained medium you actually use, and working outwards, produces a set that is genuinely consistent.

For a trade with vehicles, that means the vinyl catalogue is the starting point, which feels backwards and produces better results.

Get a physical sample

The step that prevents expensive surprises and is skipped routinely.

Sign makers and printers can supply a swatch, a proof or an offcut, and it costs very little.

Look at it in daylight and under artificial light, because colours shift considerably between the two and a van lives outdoors.

Look at it at size, since a small swatch reads differently from a large panel.

Approving a colour from a screen preview of a printed item is approving something nobody has seen, and it is how businesses end up with a van they are unhappy with for six years.

The counter-case

Where exact consistency does not matter.

A business with no physical presence, where the colour exists only on screens and the whole question is moot.

A brand where the colour is incidental rather than a recognition cue, which is most small businesses honestly assessed.

And situations where the cost of matching exceeds the benefit, such as a one-off printed item where close enough is genuinely close enough.

The businesses for which this matters most are the ones whose colour is the recognition itself: a livery seen repeatedly on the road, where any inconsistency is noticeable.

Backgrounds change everything

A colour is never seen alone, and what sits behind it changes how it reads.

The same green looks different on a white van and a black one, and different again against grass or a brick wall.

Which means testing a colour against the actual background it will appear on, rather than on a white screen.

The same applies online, where a brand colour chosen against white can be almost invisible on a dark section of a page.

Practical constraints for signage

Worth knowing before choosing anything.

Some colours fade faster outdoors, particularly reds and some oranges, and a van three years old will not match a new one.

Reflective and metallic finishes have their own limited ranges and their own costs.

Dark colours show dust and scratches more; light ones show dirt.

And a colour must have adequate contrast against the vehicle it is applied to, which constrains the choice further if the fleet is not all one colour.

A sign maker will tell you all of this readily if asked before the design is finalised rather than after it has been signed off.

How many colours

Fewer than most small businesses end up with.

One primary colour, one dark for text, one light for backgrounds, and one accent for anything that needs to stand out.

That is enough for a website, a van, a letterhead and a uniform, and it is what most recognisable small brands actually use.

What accumulates instead is a colour per service, a colour somebody liked, and whatever came with the theme, producing a palette nobody can apply consistently.

The accent colour is worth reserving strictly: if it appears on every button, every heading and every panel, it stops marking anything.

What to record

1. The hex value for screen.
2. The CMYK breakdown for print.
3. The spot reference, if you have one.
4. The vinyl product and code used on vehicles.
5. Who supplied each and when.
6. A physical sample, kept somewhere findable.

The sixth is the one that saves the most trouble, because in five years when a second van is being wrapped, the sample answers the question that nobody's memory will.

The related question of logo files is covered in the logo nobody can read at thumbnail size.

Frequently asked questions

West Coast Media Solutions Inc. provides web design, web development, hosting, digital marketing, and business consulting to organisations across Canada, drawing on more than twenty-five years in the field.