# Opus design system

> Opus design system measured from opus.pro: Geistvf font, #4262FF primary on #000000, 9 color hex codes, type scale, spacing and a free DESIGN.md.

Canonical page: https://sitepeel.dev/design-md/opus.pro/

Opus’s website (opus.pro) uses the Geistvf font and #4262FF as its main color on a black background. Measured by Sitepeel on November 6, 2026.

## What font does Opus use?

Opus uses Geistvf (weights 400, 500 and 600) on opus.pro. Page titles are 60px at weight 600 (24px on phones) and body text is 16px. Measured on November 6, 2026.

- Geistvf (weights 400, 500, 600)

## Opus colors: palette and hex codes

Opus’s main colors are #000000 (near black) for the background, #FFFFFF (white) for text and #4262FF (indigo) as the main accent. Measured on November 6, 2026.

- #000000: near black
- #FFFFFF: white
- #101416: cool charcoal
- #4262FF: indigo

## What is Opus built with?

Opus’s website (opus.pro) is built with Finsweet Attributes, Webflow, jQuery, Swiper and Cloudflare. Measured on November 6, 2026.

- JavaScript framework: jQuery 3.5.1
- Animation & 3D: GSAP 3.13.0, GSAP Observer 3.13.0, GSAP ScrollTrigger 3.13.0, Rive 2.49.4
- Analytics: Meta Pixel 2.9.437, Mixpanel, TikTok Pixel, Google Ads
- Hosting & CDN: Cloudflare
- Site builder & CMS: Finsweet Attributes, Webflow
- Marketing & support: Cookiebot, HubSpot

## Questions and answers

### What font does Opus use?

Opus’s website uses Geistvf (weights 400, 500 and 600). Page titles are 60px at weight 600 (24px on phones) and body text is 16px. Measured on November 6, 2026.

### What are the Opus colors and hex codes?

On opus.pro: #000000 (near black) for the background, #FFFFFF (white) for text and #4262FF (indigo) as the main accent. The color palette above lists all 9 colors with their hex codes and where each one is used.

### What is the Opus design system?

The design system on this page is opus.pro’s, as measured on November 6, 2026: Geistvf type, #4262FF as the main color and 8px corners, written down as a DESIGN.md. It is not Opus’s own documentation.

### What is Opus built with?

Opus’s website (opus.pro) is built with Finsweet Attributes, Webflow, jQuery, Swiper and Cloudflare. The full tech stack Sitepeel found: jQuery, GSAP, GSAP Observer, GSAP ScrollTrigger, Rive, Meta Pixel, Mixpanel, TikTok Pixel, Cloudflare and Finsweet Attributes. Measured on November 6, 2026.

### What is the Opus DESIGN.md?

A plain-text file with Opus’s measured colors, type, spacing, corners and components as tokens, plus short rules, in the DESIGN.md format Google published with Stitch. Your AI coding agent reads it and builds in this style. More about DESIGN.md.

### How do I use it with Claude Code or Cursor?

Download the file and put it in your project’s root folder, then ask your agent to follow DESIGN.md. Step-by-step guides: Claude Code, Cursor, Codex, GitHub Copilot.

### Is this Opus’s official design system?

No. Sitepeel measured it from opus.pro’s public page on November 6, 2026. It is an independent analysis, not made or approved by Opus.

### Can I use Opus’s style in my own product?

Use it to learn, prototype and compare. For a real product, make the style your own, and never copy Opus’s logo, name, pictures or text.

### How accurate are the values?

Each value was measured on the rendered page after it fully loaded, on desktop and mobile: colors where they appear, type with tracking, spacing, corners, shadows and hover states. Sites change, so check the date at the top.

## Files

- [DESIGN.md](https://sitepeel.dev/design-md/opus.pro/DESIGN.md): the plain file to put in your project.
- [All brand DESIGN.md files](https://sitepeel.dev/design-md/examples/index.md)

Independent analysis by Sitepeel (sitepeel.dev), not affiliated with Opus.

## The DESIGN.md file

```markdown
---
version: alpha
name: Opus
description: "Dark interface measured from opus.pro: Geistvf type, indigo accents, tonal surfaces and pill-shaped controls."
colors:
  background: "#000000"
  surface: "#000000"
  on-surface: "#FFFFFF"
  on-background: "#FFFFFF"
  surface-container-low: "#101416"
  overlay: "#FFFFFF0D"
  overlay-strong: "#FFFFFF1A"
  outline: "#FFFFFF1A"
  outline-variant: "#FFFFFF2E"
  primary: "#4262FF"
  on-primary: "#FFFFFF"
typography:
  headline-display:
    fontFamily: Geistvf
    fontSize: 60px
    fontWeight: 600
    lineHeight: 0.96
    letterSpacing: -0.04em
  headline-lg:
    fontFamily: Geistvf
    fontSize: 48px
    fontWeight: 600
    lineHeight: 1.08
    letterSpacing: -0.033em
  headline-md:
    fontFamily: Geistvf
    fontSize: 24px
    fontWeight: 600
    lineHeight: 1.12
    letterSpacing: -0.029em
  headline-sm:
    fontFamily: Geistvf
    fontSize: 20px
    fontWeight: 400
    lineHeight: 1.5
    letterSpacing: -0.04em
  body-md:
    fontFamily: Geistvf
    fontSize: 16px
    fontWeight: 400
    lineHeight: 1.5
  body-lg:
    fontFamily: Geistvf
    fontSize: 18px
    fontWeight: 600
    lineHeight: 1.4
  body-sm:
    fontFamily: Geistvf
    fontSize: 14px
    fontWeight: 400
    lineHeight: 1.29
  label-md:
    fontFamily: Geistvf
    fontSize: 16px
    fontWeight: 500
    lineHeight: 1.25
  label-sm:
    fontFamily: Geistvf
    fontSize: 14px
    fontWeight: 500
  headline-display-mobile:
    fontFamily: Geistvf
    fontSize: 24px
    fontWeight: 600
    lineHeight: 1.2
    letterSpacing: -0.025em
  headline-lg-mobile:
    fontFamily: Geistvf
    fontSize: 24px
    fontWeight: 600
    lineHeight: 1.12
    letterSpacing: -0.029em
  headline-md-mobile:
    fontFamily: Geistvf
    fontSize: 18px
    fontWeight: 400
    lineHeight: 1.5
rounded:
  sm: 8px
  md: 10.08px
  lg: 100px
  full: 9999px
spacing:
  sm: 7.04px
  md: 10.08px
  lg: 24px
  xl: 40px
  gutter: 24px
  section: 80px
components:
  button-primary:
    backgroundColor: "#FAFAFA"
    textColor: "{colors.background}"
    typography: "{typography.label-md}"
    rounded: "{rounded.full}"
    padding: 12px 20px
    height: 52px
  button-primary-hover:
    backgroundColor: "#E0E0E0"
  button-secondary:
    backgroundColor: "{colors.on-surface}"
    textColor: "{colors.background}"
    typography: "{typography.label-sm}"
    rounded: "{rounded.sm}"
    padding: 10.08px 16px
    height: 38px
  button-outline:
    textColor: "{colors.on-surface}"
    typography: "{typography.label-md}"
    rounded: "{rounded.full}"
    padding: 12px 20px
    height: 64px
  button-ghost:
    textColor: "#FFFFFF80"
    typography: "{typography.label-sm}"
    rounded: "{rounded.sm}"
    padding: 10.08px 16px
  input-field:
    textColor: "#E2E3E7"
    typography: "{typography.body-md}"
    rounded: "{rounded.lg}"
    padding: 12px 16px 12px 48px
---

# Opus Design System

## Overview

Opus describes itself as: “OpusClip turns long videos into high-quality viral clips, and publishes them to all social platforms in one click. We help 20M+ creators create and grow faster.” The interface is dark, built on **Near Black (#000000)** with **White (#FFFFFF)** text, and **Indigo (#4262FF)** as the main accent.

Type is set in **Geistvf**. Headlines run large with tight negative tracking; body text is 16px. The surface language is flat. Controls are pill-shaped.

Measured from [opus.pro](https://www.opus.pro/) on November 6, 2026 at 1440×900 and 390×844 from 216 rendered elements. Values are computed styles from the live page, not the original source files.

## Colors

The palette has 9 roles.

- **Near Black (#000000):** Page background, seen 3 times. Token `background`, CSS `--text--primary-dark`.
- **White (#FFFFFF):** Primary text and headings, seen 21 times. Token `on-surface`, CSS `--text--text`.
- **Cool Charcoal (#101416):** Raised areas one step from the page, seen 1 time. Token `surface-container-low`.
- **White 5% (#FFFFFF0D):** Translucent fill for cards and controls, seen 1 time. Token `overlay`, CSS `--ui--buttons--button-tonal-disable`.
- **White 10% (#FFFFFF1A):** Stronger translucent fill, seen 1 time. Token `overlay-strong`, CSS `--ui--buttons--button-tonal`.
- **White 10% (#FFFFFF1A):** Borders and dividers, seen 2 times. Token `outline`, CSS `--ui--buttons--button-tonal`.
- **White 18% (#FFFFFF2E):** Secondary dividers, seen 1 time. Token `outline-variant`.
- **Indigo (#4262FF):** Brand accent (CSS variable). Token `primary`.
- **White (#FFFFFF):** Text and icons on primary. Token `on-primary`.

## Typography

**Geistvf** carries the whole interface. Fallback stack: `Geistvf, sans-serif`. Other loaded fonts: Geist Mono, Lora.

- **headline-display:** Geistvf 60px at weight 600, line height 0.96, tracking -0.04em (24px on mobile). Page title (h1).
- **headline-lg:** Geistvf 48px at weight 600, line height 1.08, tracking -0.033em (24px on mobile). Section headings (h2).
- **headline-md:** Geistvf 24px at weight 600, line height 1.12, tracking -0.029em (18px on mobile). Sub-section headings.
- **headline-sm:** Geistvf 20px at weight 400, line height 1.5, tracking -0.04em. Card and feature titles.
- **body-md:** Geistvf 16px at weight 400, line height 1.5. Body text.
- **body-lg:** Geistvf 18px at weight 600, line height 1.4. Lead paragraphs.
- **body-sm:** Geistvf 14px at weight 400, line height 1.29. Secondary and small text.
- **label-md:** Geistvf 16px at weight 500, line height 1.25. Buttons, navigation and labels.
- **label-sm:** Geistvf 14px at weight 500. Small labels and badges.

## Layout

Spacing does not follow a strict grid: 56% of measured values are multiples of 4px, so match the measured steps rather than rounding to a grid.

- **Scale:** sm 7.04px, md 10.08px, lg 24px, xl 40px.
- **Sections:** 80px vertical padding between major sections.
- **Gaps:** 24px is the most common gap in flex and grid layouts.
- **Breakpoints:** 479px, 767px, 768px, 991px, 1280px, 1440px, 1920px.

## Elevation & Depth

The design is flat: no shadows were measured. Hierarchy comes from tonal surface steps (#101416) and #FFFFFF1A borders.

## Shapes

Interactive controls are pill-shaped. Measured radii, most used first:

- **sm (8px):** 32 elements.
- **md (10.08px):** 28 elements.
- **full (9999px):** 20 elements.
- **lg (100px):** 4 elements.

## Components

Measured from the rendered page. Token values reference the tokens above.

- **button-primary (“Get free clips”):** #FAFAFA fill, #000000 text, 16px/500, 1000px radius, padding 12px 20px.
- **button-primary-hover:** background #E0E0E0, text #000000 on hover.
- **button-secondary (“Sign up - It’s FREE”):** #FFFFFF fill, #000000 text, 14.08px/500, 8px radius, padding 10.08px 16px.
- **button-outline (“Auto-edit”):** transparent fill, #FFFFFF text, 16px/500, 1000px radius, padding 12px 20px, border 1px solid #FFFFFF2E.
- **button-ghost (“Features”):** transparent fill, #FFFFFF80 text, 14.08px/500, 8px radius, padding 10.08px 16px.
- **input-field (“Video link”):** transparent fill, #E2E3E7 text, 16px/400, 100px radius, padding 12px 16px 12px 48px.

## Do's and Don'ts

- Do use #000000 for the page and lift surfaces in small steps: #101416.
- Do use #4262FF as the brand accent: header, logo and key highlights.
- Do set headlines in Geistvf with tight tracking (-0.04em).
- Do reuse the measured spacing steps (7.04px, 10.08px, 24px).
- Do make buttons and chips fully rounded (9999px); most other elements use 8px corners.
- Don't add drop shadows for depth; use tonal surfaces.
- Don't introduce new font families beyond Geistvf.
- Don't use #4262FF for large backgrounds or body text.
- Don't make interface transitions slower than 0.38s.

## Motion

Interface transitions are quick: 0.2s, 0.001s, 0.3s, 0.38s.

- **Easing:** `ease`, `cubic-bezier(0.4, 0, 0.2, 1)`, `cubic-bezier(0.33, 0, 0.15, 1)`.

Generated by [Sitepeel](https://sitepeel.dev/design-md/opus.pro/), the free DESIGN.md generator (engine 2026.10.29+b828a475ee10).

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