Re: Pantone Numbers for Railroad Paints

Dave Nelson

FWIW, many of the next-gen TV sets (UHD) will come with High Definition
Color (HDR). What that means in digital terms is instead of using 8 bits to
obtain 256 gradations each of red, blue, and green, it'll use 10 bits and
provide 1024 gradations of each. The number of discrete colors will jump
from almost 17 million to over 1 billion. Of course this still won't
provide good representations of shiny metals (which are visually multiple
colors to a far greater degree than ordinary colors, the lighting being
equal) but I suppose you can't have everything.

In due time computer graphics cards and art software will support the same.
That'll be fine for me -- I paint my digital models w/ light anyway and
heck, with a billion colors to choose from people might actually find 1024
values in each of the RGB codes more than adequate to convey what color
swatches for the model railroad freight cars.

Dave Nelson

-----Original Message-----
From: []
Sent: Saturday, February 24, 2018 12:27 PM
Subject: [STMFC] Re: Pantone Numbers for Railroad Paints

I'm late to this party, but have a few comments.

The original question was are there Pantone numbers for RR paints?
The answer is usually no. The reason is that there are only 1200 or 1400
Pantone colors.

Your computer screen with 24-bit RGB color (8 bits per color) will produce
almost 17 million colors (256x256x256 = 16,777,216). That's a lot more than
Pantone, but still not all colors.
Similar is true for CMYK printed colors.

There is no way for RGB or CMYK to produce the color Sodium Yellow, which is
a near single frequency of visible light (remember sodium vapor street
lights?). Same is true for the color of most neon signs and any LED -
neither the RGB nor CMYK systems can match them.

So we do the best we can with available materials and move on.

Dick Harley
Laguna Beach, CA

Posted by: Dick Harley <>


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