Sitepeel design system

---
version: alpha
name: Sitepeel
description: "Dark monochrome interface measured from sitepeel.dev: Geist type, tonal surfaces and 7px corners."
colors:
  background: "#09090B"
  surface: "#09090B"
  on-surface: "#FFFFFF"
  on-background: "#FFFFFF"
  on-surface-variant: "#215238"
  surface-container-low: "#101014"
  surface-container: "#111013"
  surface-container-high: "#121015"
  surface-container-highest: "#161319"
  overlay: "#00000022"
  overlay-strong: "#C4A5ED0C"
  outline: "#FFFFFF2B"
  outline-variant: "#AD87CF40"
  primary: "#F4F2F6"
  on-primary: "#151319"
  secondary: "#C4A5ED"
  tertiary: "#B48BDD"
typography:
  headline-display:
    fontFamily: Geist
    fontSize: 100px
    fontWeight: 510
    lineHeight: 1.08
    letterSpacing: -0.065em
  headline-lg:
    fontFamily: Geist
    fontSize: 59px
    fontWeight: 460
    lineHeight: 1.09
    letterSpacing: -0.05em
  headline-md:
    fontFamily: Geist
    fontSize: 53px
    fontWeight: 470
    lineHeight: 1.1
    letterSpacing: -0.05em
  headline-sm:
    fontFamily: Geist
    fontSize: 23px
    fontWeight: 700
    lineHeight: 1.2
    letterSpacing: -0.03em
  title-lg:
    fontFamily: Geist
    fontSize: 20px
    fontWeight: 480
    letterSpacing: -0.028em
  body-md:
    fontFamily: Geist
    fontSize: 14px
    fontWeight: 400
    lineHeight: 1.5
  body-lg:
    fontFamily: Geist
    fontSize: 17px
    fontWeight: 520
    lineHeight: 1.2
    letterSpacing: -0.035em
  body-sm:
    fontFamily: Geist
    fontSize: 13px
    fontWeight: 400
    lineHeight: 1.5
  caption:
    fontFamily: Geist
    fontSize: 12px
    fontWeight: 400
    lineHeight: 1.75
  label-lg:
    fontFamily: Geist
    fontSize: 16px
    fontWeight: 400
  label-md:
    fontFamily: Geist
    fontSize: 14px
    fontWeight: 550
    letterSpacing: -0.014em
  label-sm:
    fontFamily: Geist
    fontSize: 13px
    fontWeight: 600
    lineHeight: 1.5
    letterSpacing: -0.015em
  headline-display-mobile:
    fontFamily: Geist
    fontSize: 48.5px
    fontWeight: 510
    lineHeight: 1.08
    letterSpacing: -0.065em
rounded:
  sm: 7px
  md: 9px
  lg: 12px
  xl: 16px
  full: 9999px
spacing:
  xs: 2px
  sm: 8px
  md: 10px
  lg: 18px
  xl: 48px
  gutter: 10px
  section: 88px
  container: 1280px
components:
  button-primary:
    backgroundColor: "{colors.primary}"
    textColor: "{colors.on-primary}"
    typography: "{typography.label-sm}"
    rounded: 8px
    padding: 11px 15px
    height: 46px
  button-secondary:
    backgroundColor: "#F4F0F8"
    textColor: "#17121D"
    typography: "{typography.label-sm}"
    rounded: "{rounded.sm}"
    padding: 10px 14px
    height: 42px
  button-outline:
    backgroundColor: "#211A29"
    textColor: "{colors.on-surface}"
    typography: "{typography.body-sm}"
    rounded: 8px
    padding: 8px 12px
    height: 44px
  button-outline-hover:
    backgroundColor: "#33263F"
  link:
    textColor: "{colors.on-surface}"
---

# Sitepeel Design System


## Overview


Sitepeel describes itself as: “Sitepeel is a website cloner and inspector for Chrome. Copy HTML and CSS, clone pages, generate Design MD and compare responsive layouts with 13 tools.” The interface is dark, built on **Near Black (#09090B)** with **White (#FFFFFF)** text and almost no color: actions are carried by contrast, not hue.

Type is set in **Geist**. Headlines run large with tight negative tracking; body text is 14px. Depth comes from soft drop shadows. Corners are mostly 7px.

Measured from [sitepeel.dev](https://sitepeel.dev/) on October 21, 2026 at 1440×900 and 390×844 from 419 rendered elements. Values are computed styles from the live page, not the original source files.

## Colors


The palette has 15 roles, plus gradient stops #C4A5ED.

- **Near Black (#09090B):** Page background, seen 1 time. Token `background`.
- **White (#FFFFFF):** Primary text and headings, seen 165 times. Token `on-surface`.
- **Dark Green (#215238):** Secondary text, seen 2 times. Token `on-surface-variant`.
- **Charcoal (#101014):** Raised areas one step from the page, seen 1 time. Token `surface-container-low`.
- **Charcoal (#111013):** Cards and panels, seen 3 times. Token `surface-container`.
- **Charcoal (#121015):** Hover and pressed fills, seen 3 times. Token `surface-container-high`.
- **Cool Charcoal (#161319):** Highest raised elements, seen 13 times. Token `surface-container-highest`.
- **Near Black 13% (#00000022):** Translucent fill for cards and controls, seen 13 times. Token `overlay`.
- **Light Violet 5% (#C4A5ED0C):** Stronger translucent fill, seen 13 times. Token `overlay-strong`.
- **White 17% (#FFFFFF2B):** Borders and dividers, seen 31 times. Token `outline`.
- **Violet 25% (#AD87CF40):** Secondary dividers, seen 13 times. Token `outline-variant`.
- **Snow (#F4F2F6):** Primary buttons and calls to action, seen 4 times. Token `primary`.
- **Cool Charcoal (#151319):** Text and icons on primary. Token `on-primary`.
- **Light Violet (#C4A5ED):** Most used accent color, seen 5 times. Token `secondary`.
- **Light Violet (#B48BDD):** Most used accent color, seen 3 times. Token `tertiary`.

## Typography


**Geist** carries the whole interface. Fallback stack: `Geist, Arial, sans-serif`.

- **headline-display:** Geist 100px at weight 510, line height 1.08, tracking -0.065em (48.5px on mobile). Page title (h1).
- **headline-lg:** Geist 59px at weight 460, line height 1.09, tracking -0.05em. Section headings (h2).
- **headline-md:** Geist 53px at weight 470, line height 1.1, tracking -0.05em. Sub-section headings.
- **headline-sm:** Geist 23px at weight 700, line height 1.2, tracking -0.03em. Card and feature titles.
- **title-lg:** Geist 20px at weight 480, tracking -0.028em. Small titles.
- **body-md:** Geist 14px at weight 400, line height 1.5. Body text.
- **body-lg:** Geist 17px at weight 520, line height 1.2, tracking -0.035em. Lead paragraphs.
- **body-sm:** Geist 13px at weight 400, line height 1.5. Secondary and small text.
- **caption:** Geist 12px at weight 400, line height 1.75. Captions and fine print.
- **label-lg:** Geist 16px at weight 400. Large buttons and tabs.
- **label-md:** Geist 14px at weight 550, tracking -0.014em. Buttons, navigation and labels.
- **label-sm:** Geist 13px at weight 600, line height 1.5, tracking -0.015em. Small labels and badges.

## Layout


Spacing does not follow a strict grid: 36% of measured values are multiples of 4px, so match the measured steps rather than rounding to a grid.

- **Scale:** xs 2px, sm 8px, md 10px, lg 18px, xl 48px.
- **Sections:** 88px vertical padding between major sections.
- **Gaps:** 10px is the most common gap in flex and grid layouts.
- **Container:** content is capped at 1280px.
- **Breakpoints:** 319px, 360px, 380px, 400px, 480px, 580px, 600px, 680px, 760px, 761px, 800px, 900px, 980px, 981px, 1000px, 1100px, 1180px, 1500px.

## Elevation & Depth


Raised elements use soft drop shadows. The most used recipes:

- `rgba(0, 0, 0, 0.2) 0px 2px 10px 0px`
- `rgba(179, 138, 232, 0.43) 0px 0px 12px 0px`
- `rgba(16, 11, 32, 0.125) 0px 4px 22px 0px`

## Shapes


Most elements use 7px corners. Measured radii, most used first:

- **sm (7px):** 144 elements.
- **md (9px):** 72 elements.
- **lg (12px):** 64 elements.
- **xl (16px):** 16 elements.
- **full (9999px):** 4 elements.

## Components


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

- **button-primary (“Add to Chrome Free install”):** #F4F2F6 fill, #151319 text, 13px/600, 8px radius, padding 11px 15px, border 1px solid #F4F2F6.
- **button-secondary (“Add to Chrome Free install”):** #F4F0F8 fill, #17121D text, 13px/600, 7px radius, padding 10px 14px, border 1px solid #F4F0F8.
- **button-outline (“Your account”):** #211A29 fill, #FFFFFF text, 13px/550, 8px radius, padding 8px 12px, border 1px solid #B48BDD.
- **button-outline-hover:** background #33263F, text #FFFFFF on hover.
- **link:** transparent fill, #FFFFFF text, padding 0px.

## Do's and Don'ts


- Do use #09090B for the page and lift surfaces in small steps: #101014, #111013, #121015, #161319.
- Do keep text in 2 levels: #FFFFFF, #215238.
- Do let contrast carry emphasis; primary actions use #F4F2F6 on #09090B.
- Do set headlines in Geist with tight tracking (-0.065em).
- Do reuse the measured spacing steps (8px, 10px, 18px).
- Do use 7px corners on most elements; larger surfaces also use 9px, 12px and 16px.
- Don't use #215238 for body text; it reaches 2.2:1 on #09090B. Keep it for large text or metadata.
- Don't introduce new font families beyond Geist.
- Don't add saturated accent colors; the measured palette is almost entirely neutral.
- Don't make interface transitions slower than 0.25s.

## Motion


Interface transitions are quick: 0.18s, 0.2s, 0.25s, 0.15s.

- **Easing:** `ease`.
- **Reduced motion:** the page responds to `prefers-reduced-motion`.

Generated by [Sitepeel](https://sitepeel.dev/design-md/sitepeel.dev/), the free DESIGN.md generator.