# Loops design system

> Loops design system measured from loops.so: Newsreader font, 12 color hex codes, type scale, spacing and a free DESIGN.md. Light theme with 10px corners.

Canonical page: https://sitepeel.dev/design-md/loops.so/

Loops’s website (loops.so) uses the Newsreader font on a #F9F9F8 background. Measured by Sitepeel on November 4, 2026.

## What font does Loops use?

Loops uses Newsreader (weight 500) and Georgia (weight 400) on loops.so. Page titles are 44px at weight 500 and body text is 14px. Measured on November 4, 2026.

- Newsreader (weights 500)
- ui-serif (weights 400)
- Georgia (weights 400)
- Inter (weights 400, 500)

## Loops colors: palette and hex codes

Loops’s main colors are #F9F9F8 (snow) for the background and #21201C (charcoal) for text, with #7D1B0C (dark red) as another accent. Measured on November 4, 2026.

- #F9F9F8: snow
- #21201C: charcoal
- #44433F: graphite
- #63635E: slate
- #FDFDFC: snow
- #F1F0EF: mist
- #E9E8E6: mist
- #CFCECA: silver

## What is Loops built with?

Loops’s website (loops.so) is built with Framer, React, Cloudflare, Motion and Google Fonts. Measured on November 4, 2026.

- Site builder & CMS: Framer
- Hosting & CDN: Cloudflare
- JavaScript framework: React 18.3.1
- Analytics: Amplitude, X Pixel, Google Analytics
- Animation & 3D: Motion
- Fonts & icons: Google Fonts

## Questions and answers

### What font does Loops use?

Loops’s website uses Newsreader (weight 500) and Georgia (weight 400). Page titles are 44px at weight 500 and body text is 14px. Measured on November 4, 2026.

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

On loops.so: #F9F9F8 (snow) for the background and #21201C (charcoal) for text, with #7D1B0C (dark red) as another accent. The color palette above lists all 12 colors with their hex codes and where each one is used.

### What is the Loops design system?

The design system on this page is loops.so’s, as measured on November 4, 2026: Newsreader type and 10px corners, written down as a DESIGN.md. It is not Loops’s own documentation.

### What is Loops built with?

Loops’s website (loops.so) is built with Framer, React, Cloudflare, Motion and Google Fonts. The full tech stack Sitepeel found: Framer, Cloudflare, React, Amplitude, X Pixel, Motion, Google Fonts and Google Analytics. Measured on November 4, 2026.

### What is the Loops DESIGN.md?

A plain-text file with Loops’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 Loops’s official design system?

No. Sitepeel measured it from loops.so’s public page on November 4, 2026. It is an independent analysis, not made or approved by Loops.

### Can I use Loops’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 Loops’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/loops.so/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 Loops.

## The DESIGN.md file

```markdown
---
version: alpha
name: Loops
description: "Light monochrome interface measured from loops.so: Newsreader type with ui-serif, tonal surfaces and pill-shaped controls."
colors:
  background: "#F9F9F8"
  surface: "#F9F9F8"
  on-surface: "#21201C"
  on-background: "#21201C"
  on-surface-variant: "#44433F"
  on-surface-muted: "#63635E"
  surface-container-low: "#FDFDFC"
  surface-container: "#F1F0EF"
  surface-container-high: "#E9E8E6"
  outline: "#E9E8E6"
  outline-variant: "#CFCECA"
  primary: "#21201C"
  on-primary: "#FDFDFC"
  secondary: "#7D1B0C"
typography:
  headline-display:
    fontFamily: Newsreader
    fontSize: 44px
    fontWeight: 500
    lineHeight: 1.08
    letterSpacing: -0.02em
  headline-lg:
    fontFamily: ui-serif
    fontSize: 30px
    fontWeight: 400
    lineHeight: 1.12
    letterSpacing: -0.02em
  headline-md:
    fontFamily: Newsreader
    fontSize: 25px
    fontWeight: 500
    lineHeight: 1.15
  headline-sm:
    fontFamily: Georgia
    fontSize: 22px
    fontWeight: 400
    lineHeight: 1.1
    letterSpacing: -0.035em
  body-md:
    fontFamily: Inter
    fontSize: 14px
    fontWeight: 400
    lineHeight: 1.5
    letterSpacing: -0.02em
  body-lg:
    fontFamily: system-ui
    fontSize: 16px
    fontWeight: 400
    lineHeight: 1.3
  body-sm:
    fontFamily: Inter
    fontSize: 12px
    fontWeight: 400
    lineHeight: 1.42
  label-lg:
    fontFamily: Inter
    fontSize: 16px
    fontWeight: 500
    lineHeight: 1.5
    letterSpacing: 0.01em
  label-md:
    fontFamily: sans-serif
    fontSize: 15.5px
    fontWeight: 600
    lineHeight: 1.2
  label-sm:
    fontFamily: Inter
    fontSize: 13px
    fontWeight: 500
    lineHeight: 1.4
    letterSpacing: -0.01em
  headline-md-mobile:
    fontFamily: Newsreader
    fontSize: 26.5px
    fontWeight: 500
    lineHeight: 1.15
rounded:
  sm: 6px
  md: 8px
  lg: 10px
  full: 9999px
spacing:
  xs: 4px
  sm: 7px
  md: 12px
  lg: 20px
  xl: 48px
  gutter: 10px
components:
  button-primary:
    backgroundColor: "{colors.primary}"
    textColor: "{colors.on-primary}"
    typography: "{typography.body-sm}"
    rounded: 40px
    padding: 10px 20px
    height: 44px
  button-outline:
    backgroundColor: "{colors.surface-container-low}"
    textColor: "{colors.on-surface}"
    typography: "{typography.body-sm}"
    rounded: "{rounded.full}"
    padding: 8px 14px
    height: 44px
  button-outline-hover:
    backgroundColor: "{colors.background}"
  button-secondary:
    textColor: "{colors.on-primary}"
    typography: "{typography.body-sm}"
    rounded: "{rounded.full}"
    padding: 8px 14px
    height: 40px
  button-ghost:
    textColor: "{colors.on-surface-muted}"
    typography: "{typography.body-sm}"
    rounded: 0px
    padding: 0px
  card:
    backgroundColor: "{colors.surface-container-low}"
    textColor: "{colors.on-surface}"
    typography: "{typography.body-sm}"
    rounded: 12px
    padding: 0px
  link:
    textColor: "#FFECE2BD"
---

# Loops Design System

## Overview

Loops describes itself as: “Loops is the email platform for SaaS teams and their agents. Send marketing, product, and transactional email from one contact record. Start for free.” The interface is light, built on **Snow (#F9F9F8)** with **Charcoal (#21201C)** text and almost no color: actions are carried by contrast, not hue.

Type is set in **Newsreader** and **ui-serif**. Headlines run large with tight negative tracking; body text is 14px. Depth comes from soft drop shadows. Controls are pill-shaped.

Measured from [loops.so](https://loops.so/) on November 4, 2026 at 1440×900 and 390×844 from 403 rendered elements. Values are computed styles from the live page, not the original source files.

## Colors

The palette has 12 roles.

- **Snow (#F9F9F8):** Page background, seen 21 times. Token `background`.
- **Charcoal (#21201C):** Primary text and headings, seen 67 times. Token `on-surface`.
- **Graphite (#44433F):** Secondary text, seen 7 times. Token `on-surface-variant`.
- **Slate (#63635E):** Muted text and metadata, seen 35 times. Token `on-surface-muted`.
- **Snow (#FDFDFC):** Raised areas one step from the page, seen 40 times. Token `surface-container-low`.
- **Mist (#F1F0EF):** Cards and panels, seen 6 times. Token `surface-container`.
- **Mist (#E9E8E6):** Hover and pressed fills, seen 1 time. Token `surface-container-high`.
- **Mist (#E9E8E6):** Borders and dividers, seen 51 times. Token `outline`.
- **Silver (#CFCECA):** Secondary dividers, seen 5 times. Token `outline-variant`.
- **Charcoal (#21201C):** Primary buttons and calls to action, seen 96 times. Token `primary`.
- **Snow (#FDFDFC):** Text and icons on primary. Token `on-primary`.
- **Dark Red (#7D1B0C):** Accent, seen 7 times. Token `secondary`, CSS `--laod-ox`.

## Typography

**Newsreader**, **ui-serif**, **Georgia**, **Inter**, **system-ui** and **sans-serif** share the interface. Fallback stack: `Newsreader, Newsreader Placeholder, serif`. Other loaded fonts: Inter Placeholder.

- **headline-display:** Newsreader 44px at weight 500, line height 1.08, tracking -0.02em. Page title (h1).
- **headline-lg:** ui-serif 30px at weight 400, line height 1.12, tracking -0.02em. Section headings (h2).
- **headline-md:** Newsreader 25px at weight 500, line height 1.15 (26.5px on mobile). Sub-section headings.
- **headline-sm:** Georgia 22px at weight 400, line height 1.1, tracking -0.035em. Card and feature titles.
- **body-md:** Inter 14px at weight 400, line height 1.5, tracking -0.02em. Body text.
- **body-lg:** system-ui 16px at weight 400, line height 1.3. Lead paragraphs.
- **body-sm:** Inter 12px at weight 400, line height 1.42. Secondary and small text.
- **label-lg:** Inter 16px at weight 500, line height 1.5, tracking 0.01em. Large buttons and tabs.
- **label-md:** sans-serif 15.5px at weight 600, line height 1.2. Buttons, navigation and labels.
- **label-sm:** Inter 13px at weight 500, line height 1.4, tracking -0.01em. Small labels and badges.

## Layout

Spacing does not follow a strict grid: 42% of measured values are multiples of 4px, so match the measured steps rather than rounding to a grid.

- **Scale:** xs 4px, sm 7px, md 12px, lg 20px, xl 48px.
- **Gaps:** 10px is the most common gap in flex and grid layouts.
- **Breakpoints:** 359.98px, 499px, 499.98px, 500px, 649.98px, 650px, 809px, 809.98px, 810px, 1199px, 1199.98px, 1200px, 1299.98px, 1599.98px, 1600px.

## Elevation & Depth

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

- `rgba(0, 0, 0, 0.04) 0px 1px 2px 0px`
- `rgba(28, 25, 23, 0.055) 0px 2px 6px 0px`
- `rgba(33, 32, 28, 0.04) 0px 1px 2px 0px`

## Shapes

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

- **lg (10px):** 108 elements.
- **full (9999px):** 108 elements.
- **sm (6px):** 68 elements.
- **md (8px):** 36 elements.

## Components

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

- **button-primary (“Start for free”):** #21201C fill, #FDFDFC text, 12px/400, 40px radius, padding 10px 20px, shadow `rgba(255, 255, 255, 0.05) 0px 1px 2px 0px inset, rgba(28, 25, 23, 0.14) 0px 2px 5px 0px, rgba(28, 25, 23, 0.3) 0px 8px 18px -12px`.
- **button-outline (“Book a demo”):** #FDFDFC fill, #21201C text, 12px/400, 999px radius, padding 8px 14px, border 1px solid #DAD9D6.
- **button-outline-hover:** background #F9F9F8, text #21201C on hover.
- **button-secondary (“Start for free”):** transparent fill, #FDFDFC text, 12px/400, 999px radius, padding 8px 14px, shadow `color(srgb 0.992157 0.992157 0.988235 / 0.04) 0px 1px 2px 0px inset, color(srgb 0.129412 0.12549 0.109804 / 0.12) 0px 2px 5px 0px`.
- **button-ghost (“Framer · Customer since Dec 2022”):** transparent fill, #63635E text, 12px/400, padding 0px.
- **card:** #FDFDFC fill, #21201C text, 12px/400, 12px radius, padding 0px, border 1px solid #E9E8E6, shadow `rgba(33, 32, 28, 0.04) 0px 1px 2px 0px`.
- **link:** transparent fill, #FFECE2BD text, padding 0px.

## Do's and Don'ts

- Do use #F9F9F8 for the page and lift surfaces in small steps: #FDFDFC, #F1F0EF, #E9E8E6.
- Do keep text in 3 levels: #21201C, #44433F, #63635E.
- Do let contrast carry emphasis; primary actions use #21201C on #F9F9F8.
- Do set headlines in Newsreader with tight tracking (-0.02em).
- Do reuse the measured spacing steps (7px, 12px, 20px).
- Do make buttons and chips fully rounded (9999px); most other elements use 10px corners.
- Don't introduce new font families beyond Newsreader, ui-serif, Georgia, Inter, system-ui and sans-serif.
- 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: 0.15s, 0.16s, 0.22s, 0.18s.

- **Easing:** `ease`, `linear`, `cubic-bezier(0.12, 0.23, 0.5, 1)`.
- **Reduced motion:** the page responds to `prefers-reduced-motion`.

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

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