BS4800 to RAL

[Jonathan]

I am trying to order a Juliette balcony. We have been using a dark grey paint for everything external and it is BS4800 00-A13. The company that I am trying to order from wants to know an RAL value instead. I cannot find any conversion tables, can anyone please help? I would be happy with an approximation as I understand conversion is not precise.

Many thanks

Jonathan

[John Donne]

You will not get an exact match, but RAL 7015 is a dark grey from my Powder Coating colour chart.

[Robin]

there may well be something better but I tried to do a vaguely similar match last year. The site I found then shows 00-A13 is close to (but of course not the same as) RAL 7016, 7026, 7024 & 7022: see

And that someone who knows or sees[1] more and better will be along i.d.c.

[1] I have an obscure form of colour blindness so offer no opinion on how close they are.

[Dave Osborne]

You really need to compare up-to-date swatches under daylight conditions to get the closest match.

If you go here: -

gives Cie-LAB-1964 values for your BS 4800 00 A 13 colour.

L=38.853 A=-0.252 B=-0.587 D65

If you then plug the LAB values here: -

the following values:

Color space = Cie-L*ab

#1 = 38.853 #2=-0.252 #3=-0.587

K=leave blank

Illuminant=D65 Observer =1964

Click "start"

Then in the bottom RH corner of the black box, click "get commercial tints"

Leave the top two boxes and set the target color collection to RAL colors

Click start. Your BS colour is in the middle and the nearest RAL options are round the outside.

By my reckoning, RAL 7010 is the closest match.

However, if you look here:

00-A-13 is more like RAL 7015 than 7010, which just goes to show that you *can't* really do this stuff looking at a computer monitor.

If you call in at your friendly local industrial paints supplier, they may let you have a look at the swatches. Alternatively, you could buy the swatches online.

HTH

[Dave Osborne]

Ooh, nice website. I see it gives different results again. According to my monitor, RAL 7024 is now the closest match!

[stephen.hull]

00 A13 in the BS-4800 colour range is called Storm Grey and the nearest match in RAL is either Slate Grey (7015) or Granite Grey (7026) but I can't positively confirm which one until I view the colour charts in true light tomorrow.

Stephen.

[Jonathan]

Thank you for all your help.

Jonathan

[stephen.hull]

According to my colour charts, Slate Grey is a slightly lighter grey than Storm Grey and Granite Grey has a touch of blue, neither colours are an exact match, however Graphite Grey (7024) is a close colour match looking at it in the correct light, Graphite Gray possesses the same blackness as Slate grey so would in my opinion be the closest colour match.

There are certain colours that cannot be matched by comparison (RAL to BS etc) as there is no exact colour match only close comparisons but the Graphite Grey is very close indeed.

Stephen.