FHElium branding

FHElium's identity connects fully homomorphic encryption with the compact, layered structure of a helium nucleus. The name, nucleus mark, color system, and typography express one engineering principle: sophisticated encrypted execution should be assembled from a small set of typed, inspectable interfaces, invariants, and requirements.

Primary lockup for light surfaces

Primary lockup for dark surfaces

Name and pronunciation

The name is formed by placing F before helium:

F + helium = FHElium

The capitalization makes the first three letters, FHE, immediately visible while retaining helium as the spoken and visual base. Use FHElium for the project and product name, and use lowercase fhelium for the Python package, import path, command, and filesystem namespace.

Two pronunciations are accepted:

Spoken form	IPA	Use
“philium”	/ˈfɪliəm/	Compact conversational reading
“F-helium”	/ˌɛf ˈhiːliəm/	Letter-by-letter reading that emphasizes FHE

Written technical material should retain the exact FHElium capitalization regardless of the spoken form.

Shape

The mark abstracts the helium-3 nucleus as three overlapping circular fields: two proton fields and one neutron field. Their overlap forms one compact body without erasing the outline of any constituent field. The 12.7-degree rotation prevents the construction from reading as a static diagram and gives the mark a directional, computational character.

Primary gradient

Flat color

Monochrome

The construction is an identity abstraction rather than a physical particle diagram. Circle positions, radii, opacity, and color encode visual hierarchy; they do not represent measured nuclear geometry or particle color.

The monochrome construction keeps every field opaque and gives each sphere a continuous contrast outline. Drawing the spheres from back to front lets the outlines meet cleanly while making the front-to-back ordering visible.

Design philosophy

The nucleus reflects FHElium's engineering model: distinct layers overlap through defined interfaces to form one compact, coherent system. Cobalt carries the technical structure, while helium amber adds identity and emphasis without obscuring the relationships being shown.

Color system

Spectral cobalt#3152C7Primary structure and proton fields

Helium amber#E39A13Identity accent and neutron field

Deep neutral#181B26Wordmark and primary light-theme text

Warm canvas#F7F7F2Primary light surface

Night canvas#11131APrimary dark surface

The source logo uses cobalt #3152C7, amber #E39A13, spectral blue #6677CF, and warm bridge #B88A5A. Interface colors may raise luminance for dark-mode readability; the source logo colors remain unchanged.

Download assets

Horizontal lockups

Asset	Format	Intended surface
Primary dark-text lockup	SVG	Light or warm-neutral background
Primary light-text lockup	SVG	Dark-neutral background
Monochrome black lockup	SVG	One-color light output
Monochrome white lockup	SVG	One-color dark output

Standalone vector marks

Asset	Format	Use
Primary gradient mark	SVG	Default standalone mark
Flat-color mark	SVG	Small sizes and restricted renderers
CSS-colorable monochrome mark	SVG	currentColor-controlled integration
Fixed black mark	SVG	One-color light output
Fixed white mark	SVG	One-color dark output

Transparent raster marks

Construction	Downloads
Primary gradient	1024 px · 512 px · 256 px · 128 px
Flat color	256 px · 128 px · 64 px · 32 px · 16 px
Monochrome	Black, 256 px · White, 256 px

All raster assets use transparent backgrounds. Select the fixed white assets only when the destination surface is known to be dark; transparent image viewers commonly display them against white.