Dover Gray should be pretty close. EasyRGB has it listed as 130 130 130. PPG has it at 114 114 117.
The Valspar 'Almost Charcoal' sounds interesting. If the color swatch I found for it is true (125 RGB) it would be N5.2. I'll pick up a sample today. :TI was kinda wondering that myself as to how accurate RGB values were, as i thought i read that somewhere here on the forums but wasn't sure, well was worth a try anyways..i will then check on other brand paints then..:T
Edit: Came across this color by Valspar paints and looks close to being a N5, color is Almost Charcoal 4008-2B Ultra Premium and i don't see any RGB values for it, but not sure if it is neutral as all the other colors in that line of paint are neutral it says, so this color in their Grays and Blacks section could be neutral..but the bad part is that the city i am in doesn't have a Lowe's yet as the next city to me does already..but is another color that might show promise.
That would be awesome if it is near N5.2, i was gifted with very good color perception as i can see minor changes in color unless they are so close in color it would be harder to tell, but it has helped me in colors through the years..:bigsmile:The Valspar 'Almost Charcoal' sounds interesting. If the color swatch I found for it is true (125 RGB) it would be N5.2. I'll pick up a sample today. :T
Sounds good and await the results of the latest testing and hopefully it will work out good.I'll let you know how the paint samples I got today pan out tomorrow or Monday. I like to let the sample chits dry for an honest 24 hours before testing. Unlike what you may read on another DIY Screen forum whistling: :rofl you CANNOT judge the color of a paint when it's wet other than in the grossest terms.
Looks like PPG is kinda whacked in the values indeed, yet the PPG i checked online shows the value at 132 133 133 for this Dover Gray, makes me wonder if different locations show different values which a person would think it shouldn't be different values, unless some locations are using a older software version in their pc for the colors.:dontknow:Dover Gray should be pretty close. EasyRGB has it listed as 130 130 130. PPG has it at 114 114 117.
I asked a guy at Lowe's that hitherto has known what he was talking about that question and he said they could. The thing is that what they mean by a "good color match" is a good bit less specific than what that term means to us. I haven't done it yet (I will next time I get to a Lowe's, but that might not be for a week) so I can only say that you can't simply multiply the tint amounts by 4 and get a good match.Harp,
Can the paint department at any Lowes translate the 8oz tinting to a full quart and get it correct? They also have color matching capabilities also so maybe that would work.
I would be happy to. The numbers to the left of the hyphen are the tint color and the numbers to the right are the tint amount in 48ths of a fluid ounce. I'll translate the formula for Valspar N5 #5 for you.Can you give me a quick lesson on how the Valspar tinting system works? I'm used to the fractional ounce system.
It might be if you wanted a N4.35 neutral gray and had access to that brand paint. Another thing that you have to watch out for is what Illuminant is the listed color based on. Artist colors are usually for the C Illuminant and not for the D65 Illuminant used for video. Luckily the more neutral a color is the less illuminant type matters (a true neutral gray is neutral for all colors of light).I was looking at EasyRGB and found Dunn-Edwards DE6377 "Boat Anchor", listed as:
R-102.68, G-103.03, B-102.01
Might this be useful?
You're welcome! :TThanks for all your hard work.
My database? :scratch: I assume you mean the different paints I have measured with my spectro over the years, and I have never tested any Dunn-Edwards paints since they are not available to me.Harp,
Can you check your database for Dunn-Edwards DE6383 "BANK VAULT"? EasyRGB lists as 112.89, 111.39, 113.39
I have a Dunn-Edwards near me so if this is a decent match I would at least like to consider it.
Yeah, I made the mistake of getting some ProClassic in satin tinted to make BW™ with, but I doubt I'll do that now since I'm all but sure it would hot spot. The SW paints in satin finish and in N8 ('Unique Gray') did not hot spot for me, but it sounds like anything darker would.I have the AAA on hand now and this weekend would be a good opportunity for me to complete the screen.
On a side note, the Sherwin Williams "Gray Shingle" in Satin sheen still warm spots after a few days of curing. As I have my projector table mounted, I am sure that when I ceiling mount that it would be a problem. Right now, the warm spot disappears "below" the lower edge of the screen and it isn't a problem. It would likely be in the middle of the screen after ceiling mounting.
LOL, I guess I made a poor assumption based on you quoting a Munsell value for the previous Dunn-Edwards paint that I mentioned. Sorry for that. It seems that Dunn-Edwards is only available out here in the west.My database? :scratch: I assume you mean the different paints I have measured with my spectro over the years, and I have never tested any Dunn-Edwards paints since they are not available to me.
I can stop buy the Dunn-Edwards store this afternoon and see what it takes to get a sample. If I can get one easily, then I'll PM you for directions for prep and mailing.The color seems to be quite neutral if the real paint matches the numbers. If you want to try and see if you can get a sample jar, make up a sample chit and mail it to me; I'll take a reading with my spectro and let you know the results. If you're interested in doing this just PM me for my address and a description on how to prepare and mail the sample (it's easy and only costs a first class stamp and an envelope).
Well, we've learned something new...and something for future DIYers to avoid. It's all good :TYeah, I made the mistake of getting some ProClassic in satin tinted to make BW™ with, but I doubt I'll do that now since I'm all but sure it would hot spot. The SW paints in satin finish and in N8 ('Unique Gray') did not hot spot for me, but it sounds like anything darker would.
To convert from RGB to CIELAB data you can use the online EasyRGB calculator or you can download a similar free program by them that runs on your own PC (OpenRGB).LOL, I guess I made a poor assumption based on you quoting a Munsell value for the previous Dunn-Edwards paint that I mentioned. Sorry for that. It seems that Dunn-Edwards is only available out here in the west.
Harp,To convert from RGB to CIELAB data you can use the online EasyRGB calculator or you can download a similar free program by them that runs on your own PC (OpenRGB).
The results of the online calculator are (it is important that you select the D65 Illuminant and the 2° Observer):
HTTP = #716F71
Web safe = #666666
RGB 0-255 = 112.89 111.39 113.39
RGB 0-FF = 70 6F 71
RGB 0-0.1 = 0.44271 0.43682 0.44467
CMY 0-0.1 = 0.55729 0.56318 0.55533
CMYK % = 0.441 1.764 0.000 55.533
XYZ = 15.526 16.159 18.039
Yxy = 16.159 0.31224 0.32497
CIE-L*ab = 47.182 0.985 -0.910
CIE-L*CH = 47.182 1.342 317.270
CIE-L*uv = 47.182 0.732 -1.382
HunterLab = 40.198 -1.404 1.532
Illuminant = D65
Observer = 2° (1931)
This paint would have a N value of 4.7 (the L* value divided by 10).
No worries! :THarp,
I have held off from sending you the sample of the Dunn-Edwards "Bank Vault". I've done a bit of reading about the development of BW™ and it is my understanding that the base paint has an influence on the performance. I don't want to attempt using anything other than the Valspar base paint for both the N5 and Bermuda Beige. Doing so would introduce an unwanted variable into this development.
I will hold off until getting my BW™ N6.4 painted to send you samples. I'll send the DE paint at that time too.
That would be fine, but my Lowe's stores don't have that color in their database. Also, I doubt that a N0.2 difference in shade would have much of an effect on the final mix.I had an idea that maybe we could try a neutral gray that is slightly lighter than N5 but already established as a neutral. I see on the sticky thread for neutral gray that there is a Glidden N5.2 (00NN 20/000 . . . "Grimmy's Grey"). Do you think that would that be acceptable?
BW™ N6.4 might be exactly what you are looking for.I'm slowly getting around to putting together a new screen that is properly rigid (1x2 frame). My intended 16:9 diagonal is now approx. 95" due to using a thinner 3/4" border. I'm using a lumen rating of 1145 for my projector in the mode I am using ("Dark Room" with Eco mode ON).