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Old 10-03-2017, 09:12 PM
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GMBurns2000 GMBurns2000 is offline
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Pantone 300 - Cobalt or Cerulean? (tough question - any takers?)

I can't find an answer anywhere online: is International Pantone 300 more Cerulean or Cobalt?

https://www.pantone.com/color-finder/300-U

The above link is the official Pantone website for this color.

Pantone 300 is the color of the Saltire flag for Scotland. I really need to get this as close as possible. I use Mussini paints.

Thoughts? Opinions? Thanks!

BTW - it seems Pantone 300 has mixes of both, but I'd love to hear what folks have to say about it.
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Last edited by GMBurns2000 : 10-03-2017 at 10:01 PM.
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Old 10-04-2017, 03:07 AM
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Gigalot Gigalot is offline
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Re: Pantone 300 - Cobalt or Cerulean? (tough question - any takers?)

It looks like pure color of Phthalo Blue RS, PB15 or PB15:2. I will take PB15 and Zinc-Titanium White for that.
Mussini Translucent Oriental Blue PB15:6 may be close?

Last edited by Gigalot : 10-04-2017 at 03:19 AM.
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Old 10-04-2017, 06:59 PM
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GMBurns2000 GMBurns2000 is offline
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Re: Pantone 300 - Cobalt or Cerulean? (tough question - any takers?)

I'm thinking that blue may be too transparent, but could be. It's really a tough thing to eye. Thanks for taking a shot at it.
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Old 10-04-2017, 07:08 PM
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Re: Pantone 300 - Cobalt or Cerulean? (tough question - any takers?)

Titanium White gives fine opacity to Phthalo Blue. Phthalo is unique color, it keeps saturation in mixture with white. No problem to mix bright and chromatic opaque blue with it!
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Old 10-04-2017, 07:53 PM
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Re: Pantone 300 - Cobalt or Cerulean? (tough question - any takers?)

It's probably closer to Cobalt Blue, actually. Cobalt Blue is a "redder blue" than Thalo Blue.

However, I'd "sneak up" on that Pantone 300 Blue by beginning with a mixture of White and Thalo Blue (Cyan), as Gigalot suggests, and add progressive amounts of Magenta (notice the Magenta at "35" at the bottom of the chart on the Pantone site). until you can compare it with the Pantone sample, until it matches.

Add enough White to match the correct value of the Pantone 300 Blue.

Since you cannot remove Magenta from Cobalt Blue (in case it doesn't match your sample), it's better to begin with the primary, Cyan (Thalo), and then gradually add Magenta to it until it matches.
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Old 10-09-2017, 12:29 PM
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Re: Pantone 300 - Cobalt or Cerulean? (tough question - any takers?)

Thanks for the advice. I'll see what I can do in the end.

I agree that it's more cobalt than thalo, but I think it's also more cerulean than cobalt, too.
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Old 10-09-2017, 05:25 PM
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Re: Pantone 300 - Cobalt or Cerulean? (tough question - any takers?)

Quote:
Originally Posted by GMBurns2000
Thanks for the advice. I'll see what I can do in the end.

I agree that it's more cobalt than thalo, but I think it's also more cerulean than cobalt, too.

Cerulean Blue is a bit grayer (less chroma) than either Thalo Blue, or Cobalt Blue. In other words, it's as if someone added a bit of Yellow to the mix, as well as Magenta. Perhaps the Pantone 300 demands a bit of grayness; I'm not sure.

Here's a wheel upon which I once scientifically plotted several colors, including some of the Blues we are discussing:

You can graphically see some of the differences in hue, and chroma among these "Blues".
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Old 10-10-2017, 12:11 PM
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Re: Pantone 300 - Cobalt or Cerulean? (tough question - any takers?)

You certainly can see the difference, but boy, those three that we're discussing here are awfully close to each other on that grid. quite interesting.
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