Mark
The default, and the one that goes small.
Brand
Every model is a planet. Antimatter is the drive. This is how it is drawn: the mark, the name, the colours and the type, with the files to use them.
A ring and its mirror image across a horizon. Matter above the line, antimatter below it in the identity spectrum, stopped a little short of the line the way a reflection is.
The default, and the one that goes small.
The mark with one point of white light where the horizon crosses the ring. For large surfaces only, never under 64 pixels.
The mark on its rounded ground, drawn to stay sharp at 16 and 32 pixels.
The mark at one and a half times the type size, the name in Space Grotesk Medium, with a tight gap: the horizon's fading tail fills the space between them.
The mark beside the short name, for most uses.
With the full name, Antimatter Compute, for legal and formal places.
The name under the mark, for square spaces.
The name alone, where the mark already stands nearby.
Title case, always. Never one word, never a domain, never capitals as a name in running text, never shortened to AM.
The site is dark only. Ink on the void, one accent for what can be pressed, and the identity spectrum for the mirror, one phrase in a heading and the jump.
Void
#020205
A ground, not for words
Surface
#08080f
A ground, not for words
Veil
#0e0e18
A ground, not for words
Line
#16161f
A ground, not for words
Faint
#5f5f74
3.3:1 on the void
Muted
#78788f
4.8:1 on the void
Soft ink
#b9b9cc
10.7:1 on the void
Ink
#d6d6e4
14.4:1 on the void
Accent
#6b4dff
4.0:1 on the void
Pressed accent
#4636e6
2.8:1 on the void
Always in this order, blue first. The white is a single point of light, never a fill, a surface or a text colour.
Electric blue
#2e7bff
5.3:1 on the void
Violet
#9b4dff
4.8:1 on the void
Hot magenta
#ee38a8
5.6:1 on the void
Annihilation white
#f7f4ff
19.0:1 on the void
For the light cut of the mark only, on paper and on other people's white pages. The site itself is never light.
Ink on white
#14141c
18.3:1 on white
Blue on white
#1f66e5
5.1:1 on white
Violet on white
#8434f0
5.6:1 on white
Magenta on white
#d81e8f
4.6:1 on white
Space Grotesk
Every model is a planet.
Display: headings, the wordmark, the figures that matter. Tracking -0.02em.
Inter
One key for every model in the catalog, at the upstream's price plus a stated margin.
Body: everything that is read.
ui-monospace
openai/gpt-4.1
x-antimatter-cost-micros
Data: model ids, keys, prices, headers.
Both faces are free under the SIL Open Font License: Space Grotesk and Inter on Google Fonts.
Keep clear space of one rim's thickness, about a seventh of the ring's width, on every side.
Draw the mark at 18 pixels or more. Below that, use the app tile, which is made for 16.
On white, use the light cut: a dark rim, the darker spectrum and a solid horizon.
Rotate, tilt or flip it. It is a mirror across a level line.
Recolour it. Ink above the line, the spectrum below it, blue on the left.
Outline it, shadow it or make it glow. The hero's one point is the only light it carries.
And never close the gap under the horizon or draw the mirror as a full ring: without the gap it is one ring in two colours, not a reflection.
Every file comes from the brand kit kept with the code. The vectors carry their lettering as shapes, so they need no font.