# Modern Treasury design system

> Modern Treasury design system measured from moderntreasury.com: mt-neue-display font, 13 color hex codes, type scale and spacing. Light theme with 2px corners.

Canonical page: https://sitepeel.dev/design-md/moderntreasury.com/

Modern Treasury’s website (moderntreasury.com) uses the mt-neue-display font and #29735C as its main color on a white background. Measured by Sitepeel on November 4, 2026.

## What font does Modern Treasury use?

Modern Treasury uses mt-neue-display (weight 450) and mt-neue-text (weight 400), with mt-mono for code on moderntreasury.com. Page titles are 71px at weight 450 (47px on phones) and body text is 14px. Measured on November 4, 2026.

- mt-neue-display (weights 450)
- mt-neue-text (weights 400)
- mt-sans (weights 330, 360, 400, 600)
- mt-mono (weights 400)

## Modern Treasury colors: palette and hex codes

Modern Treasury’s main colors are #FFFFFF (white) for the background, #151515 (charcoal) for text and #29735C (dark teal) as the main accent. Measured on November 4, 2026.

- #FFFFFF: white
- #151515: charcoal
- #444444: graphite
- #2A5060: dark cyan
- #215B4B: dark teal
- #F8F7F5: snow
- #29735C: dark teal

## What is Modern Treasury built with?

Modern Treasury’s website (moderntreasury.com) is built with Next.js, React, Tailwind CSS and Vercel. Measured on November 4, 2026.

- JavaScript framework: Next.js 16.2.6, React 19.3.0-canary-3f0b9e61-2
- Hosting & CDN: Vercel
- Analytics: PostHog, Vercel Web Analytics
- UI & CSS: Tailwind CSS 4.x

## Questions and answers

### What font does Modern Treasury use?

Modern Treasury’s website uses mt-neue-display (weight 450) and mt-neue-text (weight 400), with mt-mono for code. Page titles are 71px at weight 450 (47px on phones) and body text is 14px. Measured on November 4, 2026.

### What are the Modern Treasury colors and hex codes?

On moderntreasury.com: #FFFFFF (white) for the background, #151515 (charcoal) for text and #29735C (dark teal) as the main accent. The color palette above lists all 13 colors with their hex codes and where each one is used.

### What is the Modern Treasury design system?

The design system on this page is moderntreasury.com’s, as measured on November 4, 2026: mt-neue-display type, #29735C as the main color and 2px corners, written down as a DESIGN.md. It is not Modern Treasury’s own documentation.

### What is Modern Treasury built with?

Modern Treasury’s website (moderntreasury.com) is built with Next.js, React, Tailwind CSS and Vercel. The full tech stack Sitepeel found: Next.js, Vercel, React, PostHog, Vercel Web Analytics and Tailwind CSS. Measured on November 4, 2026.

### What is the Modern Treasury DESIGN.md?

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

No. Sitepeel measured it from moderntreasury.com’s public page on November 4, 2026. It is an independent analysis, not made or approved by Modern Treasury.

### Can I use Modern Treasury’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 Modern Treasury’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/moderntreasury.com/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 Modern Treasury.

## The DESIGN.md file

```markdown
---
version: alpha
name: Modern Treasury
description: "Light interface measured from moderntreasury.com: mt-neue-display type with mt-neue-text, dark teal accents, tonal surfaces and 2px corners."
colors:
  background: "#FFFFFF"
  surface: "#FFFFFF"
  on-surface: "#151515"
  on-background: "#151515"
  on-surface-variant: "#444444"
  on-surface-muted: "#2A5060"
  on-surface-subtle: "#215B4B"
  surface-container-low: "#FFFFFFE6"
  surface-container: "#F8F7F5"
  overlay: "#15151521"
  overlay-strong: "#29735C80"
  outline: "#15151533"
  outline-variant: "#FFFFFF33"
  primary: "#29735C"
  on-primary: "#FFFFFF"
typography:
  headline-display:
    fontFamily: mt-neue-display
    fontSize: 71px
    fontWeight: 450
    lineHeight: 1.1
  headline-lg:
    fontFamily: mt-neue-display
    fontSize: 47px
    fontWeight: 450
    lineHeight: 1.25
  headline-md:
    fontFamily: mt-neue-text
    fontSize: 32px
    fontWeight: 400
    lineHeight: 1.25
  headline-sm:
    fontFamily: mt-neue-text
    fontSize: 21px
    fontWeight: 400
    lineHeight: 1.3
  body-md:
    fontFamily: mt-sans
    fontSize: 14px
    fontWeight: 330
    lineHeight: 1.5
  body-lg:
    fontFamily: mt-sans
    fontSize: 16px
    fontWeight: 360
    lineHeight: 1.5
  label-md:
    fontFamily: mt-sans
    fontSize: 16px
    fontWeight: 400
    lineHeight: 1.5
  label-sm:
    fontFamily: mt-sans
    fontSize: 14px
    fontWeight: 600
    lineHeight: 1.5
  code:
    fontFamily: mt-mono
    fontSize: 10px
    fontWeight: 400
    lineHeight: 1.5
    letterSpacing: 0.04em
  headline-display-mobile:
    fontFamily: mt-neue-display
    fontSize: 47px
    fontWeight: 450
    lineHeight: 1.1
  headline-lg-mobile:
    fontFamily: mt-neue-display
    fontSize: 32px
    fontWeight: 450
    lineHeight: 1.25
  headline-md-mobile:
    fontFamily: mt-neue-text
    fontSize: 26px
    fontWeight: 400
    lineHeight: 1.25
rounded:
  sm: 2px
  md: 4px
  lg: 8px
spacing:
  xs: 4px
  sm: 8px
  md: 16px
  lg: 24px
  xl: 48px
  gutter: 16px
  section: 60px
  margin: 48px
components:
  button-primary:
    backgroundColor: "{colors.on-surface}"
    textColor: "{colors.on-primary}"
    typography: "{typography.label-sm}"
    rounded: "{rounded.sm}"
    padding: 6px 12px
    height: 33px
  button-ghost:
    textColor: "#000000"
    typography: "{typography.body-md}"
    rounded: "{rounded.md}"
    padding: 4px 8px
  input-field:
    backgroundColor: "{colors.background}"
    textColor: "{colors.on-surface}"
    typography: "{typography.body-lg}"
    rounded: 0px
    padding: 8px 12px
  card:
    backgroundColor: "{colors.background}"
    textColor: "#000000"
    typography: "{typography.label-md}"
    rounded: 0px
    padding: 0px
  link:
    textColor: "{colors.on-surface}"
---

# Modern Treasury Design System

## Overview

Modern Treasury describes itself as: “A payment service provider (PSP) for fiat and stablecoin. Launch in days with one API, sub-accounts, and built-in compliance across ACH, RTP, FedNow, and wire.” The interface is light, built on **White (#FFFFFF)** with **Charcoal (#151515)** text, and **Dark Teal (#29735C)** as the main accent.

Type is set in **mt-neue-display** and **mt-neue-text**, with **mt-mono** for code. Headlines run large; body text is 14px. Depth comes from hairline borders and inset highlights rather than drop shadows. Corners are mostly 2px.

Measured from [moderntreasury.com](https://www.moderntreasury.com/) on November 4, 2026 at 1440×900 and 390×844 from 294 rendered elements. Values are computed styles from the live page, not the original source files.

## Colors

The palette has 13 roles.

- **White (#FFFFFF):** Page background, seen 13 times. Token `background`, CSS `--tw-ring-offset-color`.
- **Charcoal (#151515):** Primary text and headings, seen 36 times. Token `on-surface`, CSS `--color-button-secondary-text`.
- **Graphite (#444444):** Secondary text, seen 16 times. Token `on-surface-variant`.
- **Dark Cyan (#2A5060):** Muted text and metadata, seen 15 times. Token `on-surface-muted`.
- **Dark Teal (#215B4B):** Subtle text and placeholders, seen 14 times. Token `on-surface-subtle`.
- **White 90% (#FFFFFFE6):** Raised areas one step from the page, seen 1 time. Token `surface-container-low`.
- **Snow (#F8F7F5):** Cards and panels, seen 4 times. Token `surface-container`.
- **Charcoal 13% (#15151521):** Translucent fill for cards and controls, seen 1 time. Token `overlay`, CSS `--color-alpha-black-100`.
- **Dark Teal 50% (#29735C80):** Stronger translucent fill, seen 1 time. Token `overlay-strong`.
- **Charcoal 20% (#15151533):** Borders and dividers, seen 3 times. Token `outline`.
- **White 20% (#FFFFFF33):** Secondary dividers, seen 3 times. Token `outline-variant`.
- **Dark Teal (#29735C):** Brand color in the logo, seen 23 times. Token `primary`, CSS `--color-mt-logo`.
- **White (#FFFFFF):** Text and icons on primary. Token `on-primary`.

## Typography

**mt-neue-display**, **mt-neue-text**, **mt-sans** and **mt-mono** (monospace) share the interface. Fallback stack: `mt-neue-display, ui-sans-serif, system-ui, sans-serif`.

- **headline-display:** mt-neue-display 71px at weight 450, line height 1.1 (47px on mobile). Page title (h1).
- **headline-lg:** mt-neue-display 47px at weight 450, line height 1.25 (32px on mobile). Section headings (h2).
- **headline-md:** mt-neue-text 32px at weight 400, line height 1.25 (26px on mobile). Sub-section headings.
- **headline-sm:** mt-neue-text 21px at weight 400, line height 1.3. Card and feature titles.
- **body-md:** mt-sans 14px at weight 330, line height 1.5. Body text.
- **body-lg:** mt-sans 16px at weight 360, line height 1.5. Lead paragraphs.
- **label-md:** mt-sans 16px at weight 400, line height 1.5. Buttons, navigation and labels.
- **label-sm:** mt-sans 14px at weight 600, line height 1.5. Small labels and badges.
- **code:** mt-mono 10px at weight 400, line height 1.5, tracking 0.04em. Code and technical values.

## Layout

Spacing is mostly on a 4px grid (85% of measured values), with some off-grid steps. Match the measured scale rather than rounding everything.

- **Scale:** xs 4px, sm 8px, md 16px, lg 24px, xl 48px.
- **Sections:** 60px vertical padding between major sections.
- **Gaps:** 16px is the most common gap in flex and grid layouts.
- **Page margin:** 48px on each side of full-width sections.
- **Breakpoints:** 375px, 600px, 900px, 1024px, 1200px, 1300px, 1440px.

## Elevation & Depth

Depth comes mostly from hairline rings and inset highlights on tonal surfaces (#FFFFFFE6 → #F8F7F5):

- `rgb(21, 21, 21) 0px 0px 0px 1px inset`

A few raised panels add a soft drop shadow: `rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0) 0px 0px 0px 0px, lab(0 0 0 / 0.04) 0px 20px 25px -5px, lab(0 0 0 / 0.04) 0px 8px 10px -6px`.

## Shapes

Most elements use 2px corners. Measured radii, most used first:

- **sm (2px):** 68 elements.
- **md (4px):** 24 elements.
- **lg (8px):** 12 elements.

## Components

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

- **button-primary (“Talk to us”):** #151515 fill, #FFFFFF text, 14px/600, 2px radius, padding 6px 12px, shadow `rgb(21, 21, 21) 0px 0px 0px 1px inset`.
- **button-ghost (“Products”):** transparent fill, #000000 text, 14px/500, 4px radius, padding 4px 8px.
- **input-field:** #FFFFFF fill, #151515 text, 16px/500, padding 8px 12px.
- **card:** #FFFFFF fill, #000000 text, 16px/400, padding 0px.
- **link:** transparent fill, #151515 text, padding 0px.

## Do's and Don'ts

- Do use #FFFFFF for the page and lift surfaces in small steps: #FFFFFFE6, #F8F7F5.
- Do keep text in 4 levels: #151515, #444444, #2A5060, #215B4B.
- Do use #29735C as the brand accent: header, logo and key highlights.
- Do reuse the measured spacing steps (8px, 16px, 24px).
- Do use 2px corners on most elements; larger surfaces also use 4px and 8px.
- Don't use heavy drop shadows; keep depth to hairline rings and tonal surfaces.
- Don't introduce new font families beyond mt-neue-display, mt-neue-text, mt-sans and mt-mono.
- Don't use #29735C for large backgrounds or body text.
- Don't make interface transitions slower than 0.3s.

## Motion

Interface transitions are quick: 0.15s, 0.2s, 0.3s. Longer ambient animations run 1s.

- **Easing:** `cubic-bezier(0.4, 0, 0.2, 1)`, `cubic-bezier(0, 0, 0.2, 1)`.
- **Reduced motion:** the page responds to `prefers-reduced-motion`.

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

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