# Increase design system

> Increase design system measured from increase.com: TT Interphases Pro font, #31F2BF primary, 14 color hex codes, type scale, spacing and a free DESIGN.md.

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

Increase’s website (increase.com) uses the TT Interphases Pro font and #31F2BF as its main color on a white background. Measured by Sitepeel on November 4, 2026.

## What font does Increase use?

Increase uses TT Interphases Pro (weights 400, 500 and 600), with Input Mono for code on increase.com. Page titles are 32px at weight 600 (24px on phones) and body text is 14px. Measured on November 4, 2026.

- TT Interphases Pro (weights 400, 500, 600)
- Input Mono (weights 400)

## Increase colors: palette and hex codes

Increase’s main colors are #FFFFFF (white) for the background, #1D2A36 (deep blue) for text and #31F2BF (vivid teal) as the main accent, with #34BCFF (vivid cyan) and #E4FF33 (vivid yellow) as other accents. Measured on November 4, 2026.

- #FFFFFF: white
- #1D2A36: deep blue
- #132030: deep blue
- #687887: blue
- #A6B0BA: blue
- #FCFCFC: snow
- #EDF1F5: cool mist
- #D5DEE5: cool silver

## What is Increase built with?

Increase’s website (increase.com) is built with Astro, Tailwind CSS, Google Cloud and Nginx. Measured on November 4, 2026.

- Analytics: Sentry 10.70.0, Google Ads, Google Analytics, Google Tag Manager
- Hosting & CDN: Google Cloud
- Server: Nginx
- JavaScript framework: Astro
- UI & CSS: Tailwind CSS 4.x

## Questions and answers

### What font does Increase use?

Increase’s website uses TT Interphases Pro (weights 400, 500 and 600), with Input Mono for code. Page titles are 32px at weight 600 (24px on phones) and body text is 14px. Measured on November 4, 2026.

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

On increase.com: #FFFFFF (white) for the background, #1D2A36 (deep blue) for text and #31F2BF (vivid teal) as the main accent, with #34BCFF (vivid cyan) and #E4FF33 (vivid yellow) as other accents. The color palette above lists all 14 colors with their hex codes and where each one is used.

### What is the Increase design system?

The design system on this page is increase.com’s, as measured on November 4, 2026: TT Interphases Pro type, #31F2BF as the main color and 8px corners, written down as a DESIGN.md. It is not Increase’s own documentation.

### What is Increase built with?

Increase’s website (increase.com) is built with Astro, Tailwind CSS, Google Cloud and Nginx. The full tech stack Sitepeel found: Sentry, Google Cloud, Nginx, Astro, Tailwind CSS, Google Ads, Google Analytics, Google Tag Manager and LinkedIn Insight Tag. Measured on November 4, 2026.

### What is the Increase DESIGN.md?

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

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

### Can I use Increase’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 Increase’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/increase.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 Increase.

## The DESIGN.md file

```markdown
---
version: alpha
name: Increase
description: "Light interface measured from increase.com: TT Interphases Pro type, vivid teal accents, tonal surfaces and 8px corners."
colors:
  background: "#FFFFFF"
  surface: "#FFFFFF"
  on-surface: "#1D2A36"
  on-background: "#1D2A36"
  on-surface-strong: "#132030"
  on-surface-variant: "#687887"
  on-surface-muted: "#A6B0BA"
  surface-container-low: "#FFFFFFF2"
  surface-container: "#FCFCFC"
  surface-container-high: "#EDF1F5"
  outline: "#D5DEE5"
  outline-variant: "#F5F6F7"
  primary: "#31F2BF"
  on-primary: "#1D2A36"
  secondary: "#34BCFF"
  tertiary: "#E4FF33"
typography:
  headline-display:
    fontFamily: TT Interphases Pro
    fontSize: 32px
    fontWeight: 600
    lineHeight: 1.2
    letterSpacing: -0.01em
  headline-lg:
    fontFamily: TT Interphases Pro
    fontSize: 24px
    fontWeight: 500
    lineHeight: 1.2
    letterSpacing: -0.004em
  headline-md:
    fontFamily: TT Interphases Pro
    fontSize: 20px
    fontWeight: 400
    lineHeight: 1.4
    letterSpacing: -0.01em
  body-md:
    fontFamily: TT Interphases Pro
    fontSize: 14px
    fontWeight: 400
    lineHeight: 1.43
  label-md:
    fontFamily: TT Interphases Pro
    fontSize: 16px
    fontWeight: 400
    lineHeight: 1.5
  label-sm:
    fontFamily: TT Interphases Pro
    fontSize: 14px
    fontWeight: 500
    lineHeight: 1.43
  code:
    fontFamily: Input Mono
    fontSize: 16px
    fontWeight: 400
    lineHeight: 1.5
  headline-display-mobile:
    fontFamily: TT Interphases Pro
    fontSize: 24px
    fontWeight: 600
    lineHeight: 1.2
    letterSpacing: -0.004em
  headline-lg-mobile:
    fontFamily: TT Interphases Pro
    fontSize: 20px
    fontWeight: 500
    lineHeight: 1.2
    letterSpacing: -0.01em
rounded:
  md: 8px
  full: 9999px
spacing:
  xs: 4px
  sm: 8px
  md: 16px
  lg: 24px
  xl: 48px
  gutter: 10px
components:
  button-primary:
    backgroundColor: "{colors.primary}"
    textColor: "{colors.on-primary}"
    typography: "{typography.label-md}"
    rounded: "{rounded.md}"
    padding: 12px 16px
    height: 46px
  button-outline:
    backgroundColor: "{colors.background}"
    textColor: "{colors.on-surface}"
    typography: "{typography.label-md}"
    rounded: "{rounded.md}"
    padding: 12px 16px
    height: 46px
  button-secondary:
    backgroundColor: "#1A2B3B"
    textColor: "{colors.background}"
    typography: "{typography.label-sm}"
    rounded: "{rounded.md}"
    padding: 5px 10px
    height: 36px
  button-ghost:
    textColor: "{colors.on-surface-variant}"
    typography: "{typography.label-sm}"
    rounded: "{rounded.md}"
    padding: 4px 8px
  link:
    textColor: "#334352"
---

# Increase Design System

## Overview

Increase describes itself as: “Banking for ambitious technology companies. Build great financial products with an API-first bank.” The interface is light, built on **White (#FFFFFF)** with **Deep Blue (#1D2A36)** text, and **Vivid Teal (#31F2BF)** as the main accent.

Type is set in **TT Interphases Pro**, with **Input Mono** for code. Headlines run large with tight negative tracking; body text is 14px. Depth comes from soft drop shadows. Corners are mostly 8px.

Measured from [increase.com](https://increase.com/) on November 4, 2026 at 1440×900 and 390×844 from 355 rendered elements. Values are computed styles from the live page, not the original source files.

## Colors

The palette has 14 roles.

- **White (#FFFFFF):** Page background, seen 10 times. Token `background`, CSS `--shiki-token-builtin`.
- **Deep Blue (#1D2A36):** Primary text and headings, seen 29 times. Token `on-surface`.
- **Deep Blue (#132030):** Headings and emphasis, seen 14 times. Token `on-surface-strong`.
- **Blue (#687887):** Secondary text, seen 9 times. Token `on-surface-variant`.
- **Blue (#A6B0BA):** Muted text and metadata, seen 24 times. Token `on-surface-muted`.
- **White 95% (#FFFFFFF2):** Raised areas one step from the page, seen 1 time. Token `surface-container-low`.
- **Snow (#FCFCFC):** Cards and panels, seen 2 times. Token `surface-container`.
- **Cool Mist (#EDF1F5):** Hover and pressed fills, seen 7 times. Token `surface-container-high`.
- **Cool Silver (#D5DEE5):** Borders and dividers, seen 10 times. Token `outline`.
- **Snow (#F5F6F7):** Secondary dividers, seen 8 times. Token `outline-variant`.
- **Vivid Teal (#31F2BF):** Primary buttons and calls to action, seen 26 times. Token `primary`, CSS `--shiki-token-string-expression`.
- **Deep Blue (#1D2A36):** Text and icons on primary. Token `on-primary`.
- **Vivid Cyan (#34BCFF):** Accent in logos and imagery, seen 2 times. Token `secondary`.
- **Vivid Yellow (#E4FF33):** Secondary buttons, seen 3 times. Token `tertiary`.

## Typography

**TT Interphases Pro** and **Input Mono** (monospace) share the interface. Fallback stack: `TT Interphases Pro-c98a05336328a01f, TT Interphases Pro-c98a05336328a01f fallback: Arial, Arial, sans-serif`. Other loaded fonts: TT Interphases Pro-c98a05336328a01f, Input Mono-4c4a0ba0f7fa02b9.

- **headline-display:** TT Interphases Pro 32px at weight 600, line height 1.2, tracking -0.01em (24px on mobile). Page title (h1).
- **headline-lg:** TT Interphases Pro 24px at weight 500, line height 1.2, tracking -0.004em (20px on mobile). Section headings (h2).
- **headline-md:** TT Interphases Pro 20px at weight 400, line height 1.4, tracking -0.01em. Sub-section headings.
- **body-md:** TT Interphases Pro 14px at weight 400, line height 1.43. Body text.
- **label-md:** TT Interphases Pro 16px at weight 400, line height 1.5. Buttons, navigation and labels.
- **label-sm:** TT Interphases Pro 14px at weight 500, line height 1.43. Small labels and badges.
- **code:** Input Mono 16px at weight 400, line height 1.5. Code and technical values.

## Layout

Spacing does not follow a strict grid: 62% of measured values are multiples of 4px, so match the measured steps rather than rounding to a grid.

- **Scale:** xs 4px, sm 8px, md 16px, lg 24px, xl 48px.
- **Gaps:** 10px is the most common gap in flex and grid layouts.

## Elevation & Depth

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

- `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, rgba(21, 30, 41, 0.05) 0px 1px 2px 0px`

## Shapes

Most elements use 8px corners. Measured radii, most used first:

- **md (8px):** 104 elements.
- **full (9999px):** 28 elements.

## Components

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

- **button-primary (“Contact sales”):** #31F2BF fill, #1D2A36 text, 16px/500, 8px radius, padding 12px 16px, 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, rgba(21, 30, 41, 0.05) 0px 1px 2px 0px`.
- **button-outline (“Sign up”):** #FFFFFF fill, #1D2A36 text, 16px/500, 8px radius, padding 12px 16px, border 1px solid #D5DEE5, 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, rgba(21, 30, 41, 0.05) 0px 1px 2px 0px`.
- **button-secondary (“Sign up”):** #1A2B3B fill, #FFFFFF text, 14px/500, 8px radius, padding 5px 10px.
- **button-ghost (“Products”):** transparent fill, #687887 text, 14px/500, 8px radius, padding 4px 8px.
- **link:** transparent fill, #334352 text, padding 0px.

## Do's and Don'ts

- Do use #FFFFFF for the page and lift surfaces in small steps: #FFFFFFF2, #FCFCFC, #EDF1F5.
- Do keep text in 4 levels: #1D2A36, #132030, #687887, #A6B0BA.
- Do reserve #31F2BF for primary actions and key highlights.
- Do set headlines in TT Interphases Pro with tight tracking (-0.01em).
- Do reuse the measured spacing steps (8px, 16px, 24px).
- Do use 8px corners on most elements.
- Don't use #A6B0BA for body text; it reaches 2.20:1 on #FFFFFF. Keep it for large text or metadata.
- Don't introduce new font families beyond TT Interphases Pro and Input Mono.
- Don't use #31F2BF for large backgrounds or body text.
- Don't make interface transitions slower than 0.34s.

## Motion

Interface transitions are quick: 0.15s, 0.3s, 0.34s, 0.2s. Longer ambient animations run 1.6s.

- **Easing:** `cubic-bezier(0.4, 0, 0.2, 1)`, `cubic-bezier(0.23, 1, 0.32, 1)`, `ease-in-out`.
- **Reduced motion:** the page responds to `prefers-reduced-motion`.

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

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