Highlighting red - what's a warmer color?

[baudot]

We usual put "cooler" colors in shadows and "warmer colors in highlights, but when highlighting a surface that's already candy-apple red, how do you warm that up? Heck, it's already glossy. How to add more specularity on top of an already gloss finish?

Pictured: The work in progress. I'm wanting to put highlights and lowlights on the lower barrel of this gun&shield assembly. (The right arm of a "Wroughthammer Rockram" from Warmachine.) I painted the lower barrel red to break up the endless swath of metallics in the gun. Now I'm getting stuck on how to highlight a color that's already as warm as colors get and glossy.

And heck, for cooling down the shaded areas... an orange-y brown, I suppose? That would be the next cooler shade... or even a yellow-y brown.
View attachment 62043

 

[Webmonkey]

with most colors you add a bit of white to the mix to lighten it. However, in the case of red, this creates pink. Instead, add a bit of yellow (to pull it a bit more orange-ish), and use that for your highlight. Conversely, add a bit of blue to the red (to pull the color slightly purple), and use that for the shadows.

 

[MAXXxxx]

lighter-warm color: orange - yellow are used most often, but Beige/Offwhite/Skin colors work great too.

And no matter how illogical it sounds using a light blue can work too.

 

[Erikjust]

I know of two ways to to highlight red (i am going to use Vallejo model names to illustrate there should be several sites that can translate them into the colors you are using
1: Use a VGC Scarlett Red (012) as base color, 1:1 Scarlett Red and Black (051) as shadow, then highlight up to a pure Gory Red (011), then highlight up to a pure Hot Orange (009) and finally glaze with a the base color.
2: this is taken from Ben Komets guide on Wizard of Agni
C1. VALLEJO MODEL COLOR 957 FLAT RED
C2. VALLEJO MODEL AIR 041 ARMOUR BROWN
C3. VALLEJO MODEL COLOR 913 YELLOW OCHRE
C4. SCHMINCKE PRIMACRYL TITANIUM WHITE
C5. VALLEJO MODEL COLOR 950 BLACK
C6. VALLEJO MODEL COLOR 898 DARK SEA BLUE
BASETONE RED ROBE: C1+C2+C3+C5; HIGHLIGHTS RED ROBE: BASETONE+ C3+C4; COLOR SHIFT LOWER ROBE: BASETONE + C6; HIGHLIGHTS LOWER ROBE: LOWER ROBE BASETONE + C4; MAXIMUM SHADOWS: C5+ BASETONE RED ROBE

Hopefully it helps

 

[Zab]

Sunny skin tone