Design System Inspiration of ING

1. Visual Theme & Atmosphere

ING is "a global bank with a strong European base": more than 60,000 employees offering retail and wholesale banking in more than 100 countries, shares listed in Amsterdam, Brussels and New York, and corporate headquarters in the Cedar building in Amsterdam Zuidoost. Its stated purpose is "to empower people to stay a step ahead in life and in business". ING Group is the parent of ING Bank, which in turn is the parent of its Dutch and foreign banks. ing.nl is its Dutch retail site.

The site is bright and orderly: white and light grey #f0f0f0 surfaces, dark grey text #333333, ING's famous orange #ff6200 as the brand colour, and an indigo #525199 for actions and links. Type is ING's own INGMe, with ING Display for headlines.

What makes it worth reading:

• Built from web components. The header, buttons and links live in shadow DOM; measuring them required reaching into open shadow roots.
• Role tokens with hover tints. --bg_primary orange, --bg_secondary indigo, --bg_tertiary magenta, each with its own hover tint (--bg_hover-primary #cfe4f4, -secondary #dcdceb, -tertiary #eecce0).
• Layered states and a double focus. Hover and press add translucent layers and a white inner ring; focus pairs a 2px #335d7d outline with a white inner ring (--border_focus-outer_color, --border_focus-inner_color).

Primary tasks

• Open an account; sign in.
• Explore products, themes and service.

2. Color Palette & Roles

Measured with getComputedStyle on ing.nl: about 1,700 root custom properties — --oj2_* 1,519, --border_* 54, --bg_* 29, --fg_* 12, and small dimension, opacity, gap and palette groups. All first-party.

Brand and actions

• Brand (#ff6200) — --bg_primary, --fg_primary, --oj2_fg_primary.
• Primary (#525199) — --bg_secondary, --fg_secondary; action buttons and links.
• Secondary bold (#31305b) · Secondary subtle (#dcdceb).
• Tertiary (#ab0066) — --bg_tertiary; 20 magenta <p> elements on the page.

Text and surfaces

• Foreground (#333333) — --fg_default; 45 <p> elements.
• Text subtle (#696969) — --fg_subtle.
• Canvas (#ffffff) · Page (#f0f0f0, --bg_page) · Highlight (#dfedf8).
• Hover primary (#cfe4f4) · Hover tertiary (#eecce0).

Focus and status

Focus #335d7d (--border_focus-outer_color, with a white inner colour) · Info #559bd1 · Success #349651 · Error #d70000.

3. Typography Rules

Font family

INGMe (400, 700) — INGMe, arial, helvetica, sans-serif — and ING Display (700), loaded (document.fonts).

Scale

Header buttons are 16px/700.

4. Component Stylings

Measured with the probe reaching into open shadow roots, focus read under a real Tab key, and a hover counted only when :hover matched; background-image, text-decoration and pseudo-elements were compared too.

• Primary — Open een rekening: #525199, white 16px/700, 8px, 36px. Hover adds a white 8% layer (linear-gradient(rgba(255,255,255,0.08) …)); press a 16% layer and a 2px white inner ring. Focus: outline: 2px solid #335d7d plus the white inner ring.
• Login — Inloggen: indigo text, 36px, 4px 10px. Hover fills it #525199 with a white label and an 8% dark layer; press and focus as above.
• Menu — Producten, Voor wie, Thema's: #333333. Hover: white with an 8% dark layer; press: 30%.
• Quick links — Klant worden, App activeren: indigo. Hover fills #cfe4f4; press a 16% dark layer.

Radius

8px on buttons and menu items.

5. Layout Principles

• A light grey page with white panels; orange for brand moments, indigo for everything clickable.

6. Depth & Elevation

Flat; states are drawn with layers and inner rings.

7. Do's and Don'ts

Do

• Use orange #ff6200 for the brand and indigo #525199 for actions.
• Draw hover and press as translucent layers over the fill.
• Pair a 2px #335d7d outline with a white inner ring for focus.

Don't

• Don't make buttons orange; actions are indigo.
• Don't use pure black text; the ink is #333333.
• Don't drop the white inner ring from focus.

8. Responsive Behavior

Not measured. Desktop 1440×1000 only.

9. Agent Prompt Guide

Quick Color Reference

#ff6200 ING orange · #525199 indigo · #31305b indigo bold · #ab0066 magenta · #333333 ink · #f0f0f0 page · #cfe4f4 hover tint · #335d7d focus

Example Component Prompts

• "A 36px indigo #525199 button, white 16px/700 INGMe, 8px radius; hover adds an 8% white layer; focus a 2px #335d7d outline with a white inner ring."
• "An orange #ff6200 brand band on a light grey #f0f0f0 page."

10. Voice & Tone

Not assessed as authored voice.

11. Brand Narrative

ING keeps its orange for the brand while giving actions a calm indigo. Underneath, a large web-component system spells out roles, hover tints and a two-part focus ring for every control.

12. Principles

• Orange is ING; indigo acts.
• Layers, not new colours. States add translucent layers and rings.
• Focus you can see. Outline plus inner ring.

13. Personas

Not researched. No persona claim is made from a UI capture.

14. States

Hover: 8% layers, indigo fill on the login link, #cfe4f4 on quick links. Press: 16–30% layers and a white inner ring. Focus: a 2px #335d7d outline with a white inner ring.

15. Motion & Easing

Not measured.

Tier 1 sources: https://www.ing.nl/ (live homepage — about 1,700 root custom properties read via getComputedStyle; INGMe and ING Display loaded; four components measured inside open shadow roots at rest, hover, pressed and focus, captured 2026-09-26); https://www.ing.nl/zz-this-does-not-exist (nonsense-path control — HTTP 404 in the browser, read 2026-09-26); https://www.ing.com/about-us/ing-at-a-glance (ING at a glance — 60,000+ employees, 100+ countries, listings, headquarters in the Cedar building, Amsterdam Zuidoost, read 2026-09-26); https://www.ing.com/About-us.htm (ING Group — parent of ING Bank, read 2026-09-26)