DEPTH design system

---
version: alpha
name: DEPTH
description: "Dark monochrome interface measured from depth.fyi: Inter type, tonal surfaces and pill-shaped controls."
colors:
  background: "#000000"
  surface: "#000000"
  on-surface: "#CDCED0"
  on-background: "#CDCED0"
  on-surface-variant: "#6F6B64"
  surface-container-low: "#020407"
  surface-container: "#151515"
  outline: "#1111112E"
  outline-variant: "#FFFFFF21"
  primary: "#FFFFFF"
  on-primary: "#080B0F"
  inverse-surface: "#F4F2EC"
typography:
  headline-display:
    fontFamily: Inter
    fontSize: 44.5px
    fontWeight: 330
    lineHeight: 1.08
    letterSpacing: 0.045em
  body-md:
    fontFamily: Inter
    fontSize: 16px
    fontWeight: 400
  body-sm:
    fontFamily: Inter
    fontSize: 10px
    fontWeight: 400
  caption:
    fontFamily: Inter
    fontSize: 9px
    fontWeight: 400
    letterSpacing: 0.04em
  label-lg:
    fontFamily: Inter
    fontSize: 13px
    fontWeight: 590
  label-md:
    fontFamily: Inter
    fontSize: 9px
    fontWeight: 590
  label-sm:
    fontFamily: Inter
    fontSize: 8px
    fontWeight: 560
    letterSpacing: 0.08em
  code:
    fontFamily: ui-monospace
    fontSize: 8px
    fontWeight: 400
    letterSpacing: 0.055em
  headline-display-mobile:
    fontFamily: Inter
    fontSize: 23.5px
    fontWeight: 330
    lineHeight: 1.08
    letterSpacing: 0.045em
rounded:
  sm: 80px
  md: 180px
  full: 9999px
spacing:
  xs: 3.84px
  sm: 6.08px
  md: 16px
  lg: 28.8px
  gutter: 16px
  margin: 28.8px
components:
  button-primary:
    backgroundColor: "{colors.primary}"
    textColor: "{colors.on-primary}"
    typography: "{typography.label-lg}"
    rounded: "{rounded.sm}"
    padding: 0px 14.4px 0px 18.4px
    height: 44px
  button-primary-hover:
    backgroundColor: "#DFF7FB"
    textColor: "#071014"
  button-ghost:
    textColor: "#111111"
    typography: "{typography.label-md}"
    rounded: 0px
    padding: 0px 0px 0px 12px
  card:
    textColor: "{colors.surface-container}"
    typography: "{typography.body-md}"
    rounded: 0px
    padding: 0px
  link:
    textColor: "{colors.surface-container}"
---

# DEPTH Design System

## Overview

DEPTH describes itself as: “Create studio-quality 3D renders directly in Figma with DEPTH, a real-time 3D studio for forms, materials, lighting, and environments.” The interface is dark, built on **Near Black (#000000)** with **Silver (#CDCED0)** text and almost no color: actions are carried by contrast, not hue.

Type is set in **Inter**, with **ui-monospace** for code. Headlines run large; body text is 16px. Depth comes from hairline borders and inset highlights rather than drop shadows. Controls are pill-shaped.

Measured from [depth.fyi](https://depth.fyi/) on November 6, 2026 at 1440×900 and 390×844 from 115 rendered elements. Values are computed styles from the live page, not the original source files.

## Colors

The palette has 10 roles.

- **Near Black (#000000):** Page background, seen 1 time. Token `background`.
- **Silver (#CDCED0):** Primary text and headings. Token `on-surface`.
- **Warm Slate (#6F6B64):** Secondary text, seen 17 times. Token `on-surface-variant`.
- **Near Black (#020407):** Raised areas one step from the page, seen 2 times. Token `surface-container-low`.
- **Charcoal (#151515):** Cards and panels, seen 2 times. Token `surface-container`.
- **Charcoal 18% (#1111112E):** Borders and dividers, seen 4 times. Token `outline`.
- **White 13% (#FFFFFF21):** Secondary dividers, seen 1 time. Token `outline-variant`.
- **White (#FFFFFF):** Primary buttons and calls to action, seen 5 times. Token `primary`.
- **Cool Charcoal (#080B0F):** Text and icons on primary. Token `on-primary`.
- **Warm Mist (#F4F2EC):** High-contrast fills, seen 2 times. Token `inverse-surface`.

## Typography

**Inter** and **ui-monospace** (monospace) share the interface. Fallback stack: `Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont`.

- **headline-display:** Inter 44.5px at weight 330, line height 1.08, tracking 0.045em (23.5px on mobile). Page title (h1).
- **body-md:** Inter 16px at weight 400. Body text.
- **body-sm:** Inter 10px at weight 400. Secondary and small text.
- **caption:** Inter 9px at weight 400, tracking 0.04em. Captions and fine print.
- **label-lg:** Inter 13px at weight 590. Large buttons and tabs.
- **label-md:** Inter 9px at weight 590. Buttons, navigation and labels.
- **label-sm:** Inter 8px at weight 560, tracking 0.08em. Small labels and badges.
- **code:** ui-monospace 8px at weight 400, tracking 0.055em. Code and technical values.

## Layout

Spacing does not follow a strict grid: 37% of measured values are multiples of 4px, so match the measured steps rather than rounding to a grid.

- **Scale:** xs 3.84px, sm 6.08px, md 16px, lg 28.8px.
- **Gaps:** 16px is the most common gap in flex and grid layouts.
- **Page margin:** 28.8px on each side of full-width sections.

## Elevation & Depth

Depth comes mostly from hairline rings and inset highlights on tonal surfaces (#020407 → #151515):

- `rgba(255, 255, 255, 0.32) 0px 0px 0px 1px inset`
- `rgba(255, 255, 255, 0.06) 0px 1px 0px 0px inset`

A few raised panels add a soft drop shadow: `rgba(0, 0, 0, 0.24) 0px 20px 64px 0px, rgba(255, 255, 255, 0.07) 0px 1px 0px 0px inset`.

## Shapes

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

- **full (9999px):** 20 elements.
- **sm (80px):** 4 elements.
- **md (180px):** 4 elements.

## Components

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

- **button-primary (“Open in Figma”):** #FFFFFF fill, #080B0F text, 13px/480, 80px radius, padding 0px 14.4px 0px 18.4px, border 1px solid #FFFFFFDB, shadow `rgba(255, 255, 255, 0.06) 0px 1px 0px 0px inset`.
- **button-primary-hover:** background #DFF7FB, text #071014 on hover.
- **button-ghost (“View Ripple ↗”):** transparent fill, #111111 text, 9.28px/590, padding 0px 0px 0px 12px.
- **card:** transparent fill, #151515 text, 16px/400, padding 0px, border 1px solid #DEDBD4.
- **link:** transparent fill, #151515 text, padding 0px.

## Do's and Don'ts

- Do use #000000 for the page and lift surfaces in small steps: #020407, #151515.
- Do keep text in 2 levels: #CDCED0, #6F6B64.
- Do let contrast carry emphasis; primary actions use #FFFFFF on #000000.
- Do reuse the measured spacing steps (6.08px, 16px, 28.8px).
- Do make buttons and chips fully rounded (9999px); most other elements use 80px corners.
- Don't use #6F6B64 for body text; it reaches 3.96:1 on #000000. Keep it for large text or metadata.
- Don't use heavy drop shadows; keep depth to hairline rings and tonal surfaces.
- Don't introduce new font families beyond Inter and ui-monospace.
- Don't add saturated accent colors; the measured palette is almost entirely neutral.
- Don't make interface transitions slower than 0.42s.

## Motion

Interface transitions are quick: 0.08s, 0.18s, 0.32s, 0.42s. Longer ambient animations run 0.62s.

- **Easing:** `ease`, `linear`, `cubic-bezier(0.22, 1, 0.36, 1)`.
- **Reduced motion:** the page responds to `prefers-reduced-motion`.

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