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Duolingo vs resolutai.com

Two design systems side by side, measured from the live sites — colour, type, shape, depth, components, states and responsive behaviour.

Duolingo: Duolingo - The world’s most popular way to learn · Above the fold
Duolingo
duolingo.com· read 2026-11-03
resolutai.com: Accounts Receivable Automation for Service Firms | Resolut · Above the fold
resolutai.com
resolutai.com· read 2026-10-14

Ground and ink

Each side painted in its own measured canvas, ink, muted and primary roles.

Duolingo

Heading on canvas

Body copy in the measured muted role.

Primary action
8.7:1 ink on canvas

resolutai.com

Heading on canvas

Body copy in the measured muted role.

Primary action
18.4:1 ink on canvas

Palette

Named roles first, then every colour measured without one.

Duolingo

  • canvas#FFFFFF
  • ink#4B4B4B
  • hairline#3C3C3C
  • primary#0000EE

5 more, no measured role

resolutai.com

  • canvas#0E0F11
  • surface#1D1D20
  • ink#FAFAFA
  • hairline#27272A
  • primary#C5FF3D

5 more, no measured role

Type scale

Set at the measured size, weight, tracking and leading. Brand typefaces are not loaded, so the metrics are real and the letterforms are not.

Duolingo

h1

64px · 700 · shown smaller

h2

48px · 700 · shown smaller

heading

32px · 700

body

17px · 400

link

17px · 400

body

17px · 700

button

15px · 700

resolutai.com

h1

60px · 500 · shown smaller

h2

48px · 500 · shown smaller

display

48px · 500 · shown smaller

h1

48px · 500 · shown smaller

display

48px · 500 · shown smaller

heading

36px · 500

heading

36px · 500

Corners

Drawn at the measured radii.

Duolingo

0px

12px

resolutai.com

16px

0px

12px

pill

pill

24px

Spacing

One shared scale across both sides, so the bars are directly comparable.

Duolingo

12
16
24
32
40
48
64
72

resolutai.com

4
8
12
16
20
24
32
40

Depth

Shadows cast on each side's own ground.

Duolingo

No shadows measured.

resolutai.com

sm

md

lg

xl

Buttons

Rendered from the measured computed styles.

Duolingo

texttext-sm

resolutai.com

primarytextoutlineprimary-sm

The measured values behind the panels above.

Duolingoresolutai.com

At a glance

Ground — these differLightDark
Corners — these differSoftPill
Display size — these differ64px60px
Spacing base — these differ12px4px
Accent colours — these differ67
Type families — these differ23
Ink on canvas — these differ8.7:118.4:1
Components — these differ612

Colour roles

primary — these differ#0000EE#C5FF3D
accent—#1F2937
link#A5ED6E—
canvas — these differ#FFFFFF#0E0F11
surface—#1D1D20
ink — these differ#4B4B4B#FAFAFA
body — these differ#777777#A1A1AA
hairline — these differ#3C3C3C#27272A

Full palette

Every colour each extraction kept, including the ones with no measured role.

All colours — these differ#0000EE#A5ED6E#1CB0F6#100F3E#000437#042C60#FFFFFF#58CC02#4B4B4B#777777#3C3C3C#AFAFAF#C5FF3D#1F2937#1E3A8A#14532D#7F1D1D#0F766E#0E0F11#1D1D20#FAFAFA#A1A1AA#27272A#000000#EAB308
Semantic — these differ—warning #EAB308

Typography

Families — these differfeatherduolingo-sansPoppinssentientInter Invoice
h1 — these differ64px · 700 · normal · -1.28px · feather48px · 500 · 50.4px · -1.2px · sentient
h2 — these differ48px · 700 · normal · 0px · feather48px · 500 · 52.8px · -1.2px · sentient
display—48px · 500 · 60px · -1.2px · sentient
heading — these differ32px · 700 · normal · 0px · duolingo-sans18px · 600 · 28px · 0px · Poppins
h3—18px · 600 · 24.75px · 0px · Poppins
body — these differ17px · 400 · 24px · 0px · duolingo-sans14px · 500 · 20px · 0px · Poppins
link — these differ17px · 400 · 20px · 0px · duolingo-sans14px · 500 · 20px · 0px · Poppins
quote—16px · 400 · 26px · 0px · Poppins
button — these differ15px · 700 · 17.25px · 0.8px · uppercase · duolingo-sans18px · 500 · 28px · 0px · Poppins
label—14px · 400 · 20px · 0px · Poppins
caption—12px · 400 · 16px · 0px · Poppins
list-item—12px · 400 · 16px · 0px · Poppins
table-header—12px · 500 · 16px · 0.3px · uppercase · Poppins

Shape and rhythm

Radius — these differ0px12px0px8px12px16px24px9999px
Spacing — these differ12px16px24px32px40px48px64px72px80px96px100px140px4px8px12px16px20px24px32px40px48px64px80px176px
Border widths1px2px1px2px

Depth

Strategy — these differcolor-blockinglayered-micro
Shadows — these differ—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, oklab(0 0 0 / 0.5) 0px 25px 50px -12pxrgba(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, oklab(0 0 0 / 0.3) 0px 20px 25px -5px, oklab(0 0 0 / 0.3) 0px 8px 10px -6pxrgba(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, oklab(0 0 0 / 0.4) 0px 25px 50px -12pxrgba(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(0, 0, 0, 0.1) 0px 10px 15px -3px, rgba(0, 0, 0, 0.1) 0px 4px 6px -4px
Gradients — these differ—hero: linear-gradient(oklab(0.16817 -0.00042557 -0.0044522 / 0.2) 0%, oklab(0.16817 -0.00042557 -0.0044522 / 0.4) 50%, rgb(14, 15, 17) 100%)section: linear-gradient(in oklab, rgb(29, 29, 32) 0%, rgb(14, 15, 17) 100%)
Opacity — these differ0.800.600.300.50
Z-index — these differbase 2base 1base 2dropdown 30dropdown 50toast 1000002

Components

Sharedbutton-textbutton-text-smnavigationfooterlinkbutton-textbutton-text-smnavigationfooterlink
Only here — these differlink-smbutton-primarybutton-outlinebutton-primary-smbutton-outline-2cardcard-smlink-2
Signature——

Interaction states

Read from each site's own stylesheets. An empty side means they were cross-origin and unreadable.

Measured — these differother:hoverother:focuslink:focuslink:hoverbutton:hoverother:disabledinput:focuslink:focus-visiblebutton:focusother:activeother:hovercard:hoverother:focusother:focus-visibleother:disabledlink:hover

Responsive

Breakpoints — these differ375→345px · 5col768→503px · 1col1024→503px · 1col1280→988px · 1col1440→988px · 1col375→259px · 2col768→612px · 3col1024→683px · 4col1280→853px · 4col1440→1280px · 4col

Themes

Measured on the live site, not derived.

SupportSingle themeSingle theme

How this was measured

Differences here are ours, not the brands'.

Pages read—6
Extracted — these differ2026-11-032026-10-14
StylesheetsPartly blockedPartly blocked
Roles unassigned55

Measured by DesignMD from the live sites. Compare two others. Generate a DESIGN.md for your own site.