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Sirius Guidelines
A bank that feels like a fixed point on a dark night, with Zenith, its metal card.
Introduction

Sirius is a bank for a generation that is building more than a balance: one calm app for an account, savings and a card. Zenith is the name of its metal card. The bank, the logo and the app always say plain “Sirius”; ZENITH appears only on the card and wherever the card is shown.
The mark and the wordmark are the founder’s. The mark is four leaf shapes turned around an X, crossed by one gold orbit; the wordmark sets SIRIUS in open capitals with a star over the i. Plumage redrew both flat for print and screen, added a small cut that holds at 16 px, and kept the founder’s glowing render for heroes and imagery only.
Sirius is the brightest star in the night sky, the one people steered by. The bank should feel like that: a fixed point on a dark night. Night grounds, white forms and one gold light, said in calm, exact words; never space opera, crypto glitter or “next-gen” hype.
At a glance
- Night#07090D
- Slate#151A22
- Stellar White#FFFFFF
- Aa Sora
- Aa Inter
Your orbit. Your future.
Wordmark scale
- 64 px
- 52 px
- 40 px
- 32 px
- 24 px
- 18 px
- 16 px
The mark comes first and SIRIUS follows it, in the founder’s proportions. Use the lockup wherever there is room; the mark with its orbit where it stands alone and large; the small cut, with no orbit, for the app icon, the favicon and anything under 48 px. The star over the i is the wordmark’s only gold. Never add glow, metal or gradients to the logo files, never rotate the mark (the X must stay an X), and never retype the wordmark in Sora.
Signature
Three cuts
Small sizes
Lockup, 120 px wide
Mark with orbit, 48 px
Small cut, 32 px
Small cut, 16 px
Logo on your background
Use the dark artwork: 19.9:1 against this ground. Logos need at least 3:1 (WCAG 2, non-text contrast).
Please don’t
Core palette
Night carries the brand, as the sky carries the star. White sets the forms and the words; Luxe Gold is the one warm light, kept for the star, the orbit, the primary action and the Zenith card. Pearl is the bank’s paper. Arctic Blue is for data, Mist for quiet text. The founder’s board had three near-identical blacks; they became Night and Slate. Its Arctic Blue hex (#7D03FF, a purple) was a typo, corrected to the swatch’s real value. CMYK is a plain device conversion; proof the gold against a printed swatch.
Color proportions
Night and Slate cover most of every surface, White carries the words, and Luxe Gold appears once.
Readable combinations
- AaStellar White on Night19.9:1AAA
- AaStellar White on Slate17.4:1AAA
- AaLuxe Gold on Night11.6:1AAA
- AaNight on Luxe Gold11.6:1AAA
- AaArctic Blue on Night11.3:1AAA
- AaMist on Night7.8:1AAA
- AaNight on Pearl16.7:1AAA
- AaGold Deep on Pearl3.4:1AA Large
- AaLuxe Gold on Stellar White1.7:1Fail
Gold Deep on Pearl is for rules, the star and large type only. Luxe Gold on white never carries anything. Ratios are WCAG 2 contrast, measured on the sRGB values above: AAA from 7:1, AA from 4.5:1, AA Large from 3:1 (large or bold text only).
Check a pairing
1.1:1Fail
Type system
Headlines, kept from the founder’s board: semibold 600, display 72 px on 76, H1 48 on 52, H2 32 on 38. Geometric and open like the wordmark, without copying it. By Jonathan Barnbrook and Julián Moncada, SIL Open Font License 1.1, on Google Fonts; variable WOFF2 about 45 KB (Latin). This preview doesn’t load it yet, so the line above falls back to your system’s face.
Text, interface and figures, kept from the founder’s board: body 18 on 28, at most 64 characters a line; balances in semibold tabular figures, 40 on 44. By Rasmus Andersson, SIL Open Font License 1.1; variable WOFF2 about 110 KB (Latin). This preview doesn’t load it yet, so the line above falls back to your system’s face.
Click any specimen line to try your own words.
Type scale
Your orbit.
Your orbit. Your future.
One calm app for your account, your Zenith card and your savings.
Zenith card · Black metal
Smart banking, curated for a generation that’s building more than balance.
Sirius · Account and Zenith card
Tone of voice
Sirius speaks like a calm private banker who explains everything in plain words: exact, warm and brief.
It tells people what happened, what it costs and what they can do next, in that order. Money is never a game and never an emergency.
A fixed point on a dark night
People open a bank app when something matters: a payment, a bill, a worry. Sirius answers first, calmly, and keeps the sky for the pictures.
Exact before exciting
Say what happened and when. Numbers and times beat adjectives.
| Say | Avoid |
|---|---|
| Sent. It arrives today. | Your transaction has been successfully processed! |
| Zenith is our metal card. Its fee is shown before you apply. | Next-gen finance. Limitless future. |
Calm, never hype
No exclamation marks about money, no “Oops”. Problems come with the fix.
| Say | Avoid |
|---|---|
| Your card is frozen. Unfreeze it any time in Cards. | Oops! Something went wrong with your card. |
Your money, your call
Explain, then let people decide. Security is shown in what the bank won’t do.
| Say | Avoid |
|---|---|
| We’ll never ask for your PIN. | Your security is our top priority. |
City billboard

The tagline and the mark with its orbit, printed large on Night and lit from below at blue hour. The city stays real; the only star is the brand’s.
Metro light box

Welcome box

Welcome letter

Pearl is the bank’s paper: the lockup in Night with its small gold star, the mark alone on the envelope’s flap.
Pattern: night sky

The small cut tiled edge to edge so the X channels run on into one lattice, tone on tone; one mark in Luxe Gold, the one bright star. As a device, the gold orbit alone sweeps once across a layout.
Export assets
What’s inside the zip · 48 files · 1.2 MB
- svg/Vector logos (SVG)18 files · 120 KB
- export/PNG logos, favicons and profile pictures22 files · 572 KB
- pattern/Pattern tile and device (SVG, PNG)3 files · 252 KB
- scenes/Application images (WebP)4 files · 561 KB
- README.txtWhat each folder holds, and the colours1 file








