Opus design system

---
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).