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agentsure.us vs Substack

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

agentsure.us: Agentsure — AI Incident Response & Recovery, retained. · Above the fold
agentsure.us
agentsure.us· read 2026-10-14
Substack: Substack · Above the fold
Substack
substack.com· read 2026-11-03

Worth knowing

  • Interaction states are missing on at least one side — that site's stylesheets were cross-origin and could not be read.

Ground and ink

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

agentsure.us

Heading on canvas

Body copy in the measured muted role.

Primary action
21:1 ink on canvas

Substack

Heading on canvas

Body copy in the measured muted role.

Primary action
18:1 ink on canvas

Palette

Named roles first, then every colour measured without one.

agentsure.us

  • canvas#FFFFFF
  • ink#000000
  • muted#1A1A1A
  • hairline#E6E6E6
  • primary#005032
  • on-primary#FFFFFF

5 more, no measured role

Substack

  • canvas#161718
  • surface#FFFFFF
  • ink#FFFFFF
  • muted#808080
  • hairline#000000
  • primary#FF6719
  • on-primary#222222

7 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.

agentsure.us

h1

72px · 500 · shown smaller

display

72px · 400 · shown smaller

h2

48px · 500 · shown smaller

display

48px · 400 · shown smaller

h3

28px · 500

heading

24px · 500

heading

22px · 500

Substack

h1

55px · 400 · shown smaller

heading

38px · 400

h3

32px · 500

h3

32px · 400

h3

24px · 700

h4

24px · 500

h4

24px · 400

Corners

Drawn at the measured radii.

agentsure.us

6px

pill

0px

0px

8px

Substack

0px

8px

pill

12px

4px

Spacing

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

agentsure.us

4
8
12
16
20
24
28
32

Substack

4
8
12
16
20
24
28
32

Depth

Shadows cast on each side's own ground.

agentsure.us

No shadows measured.

Substack

sm

md

lg

xl

Buttons

Rendered from the measured computed styles.

agentsure.us

primaryprimary-lgoutlineoutline-sm

Substack

primarysecondaryicontext

The measured values behind the panels above.

agentsure.usSubstack

At a glance

Ground — these differLightDark
CornersPillPill
Display size — these differ72px55px
Spacing base4px4px
Accent colours — these differ47
Type families — these differ28
Ink on canvas — these differ21.0:118.0:1
Components — these differ1012

Colour roles

primary — these differ#005032#FF6719
link — these differ#0000EE#B37767
canvas — these differ#FFFFFF#161718
surface—#FFFFFF
ink — these differ#000000#FFFFFF
body — these differ#0D1016#EEEEEE
muted — these differ#1A1A1A#808080
hairline — these differ#E6E6E6#000000
on-primary — these differ#FFFFFF#222222

Full palette

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

All colours — these differ#005032#0000EE#E68846#C0392B#C9BBA3#FFFFFF#000000#0D1016#1A1A1A#68655E#E6E6E6#F2E9DA#888888#FF6719#B37767#2A1A1E#342831#2F6D5D#3A261C#8AE1A2#774134#161718#FFFFFF#EEEEEE#808080#777777#222222#000000#363737
Semantic——

Typography

Families — these differInter TightJetBrains Monosystem-uiSF Pro DisplayCahuengaArialSF Compactmonospaceui-monospace-apple-system-ui-serif
h1 — these differ72px · 500 · 74.88px · -1.8px · Inter Tight55px · 400 · 68.2px · -0.23px · Cahuenga
h248px · 500 · 51.84px · -1.06px · Inter Tight—
display48px · 400 · 51.84px · -1.06px · Inter Tight—
h3 — these differ28px · 500 · 33.6px · -0.5px · Inter Tight24px · 700 · 28px · 0px · SF Pro Display
heading — these differ22px · 500 · 26.84px · -0.26px · Inter Tight18.72px · 700 · 24px · -0.23px · system-ui
body — these differ15.5px · 400 · 24.8px · 0px · Inter Tight13px · 400 · 17px · 0px · system-ui
quote — these differ15.5px · 400 · 23.25px · 0px · Inter Tight15px · 400 · 20px · 0px · system-ui
input — these differ14.5px · 400 · 20.3px · 0px · Inter Tight15px · 400 · 20px · 0px · system-ui
button — these differ14px · 500 · 14px · 0px · Inter Tight15px · 600 · 20px · 0px · system-ui
list-item — these differ14px · 400 · 21px · 0px · Inter Tight19px · 400 · normal · -0.23px · SF Pro Display
nav-link — these differ13px · 400 · 20.15px · 0px · Inter Tight15px · 400 · 20px · -0.23px · system-ui
caption — these differ13px · 400 · 20.15px · 0px · JetBrains Mono11px · 500 · 20px · 0.2px · uppercase · SF Compact
code — these differ12.5px · 400 · 21.25px · 0px · JetBrains Mono15px · 400 · 20px · 0px · monospace
h4 — these differ11px · 500 · 18.7px · 1.54px · uppercase · JetBrains Mono24px · 500 · 30px · 0px · Cahuenga
link — these differ11px · 400 · 18.7px · 0.44px · JetBrains Mono19px · 400 · normal · 0px · system-ui
label10.5px · 500 · 16.275px · 1.26px · uppercase · JetBrains Mono—

Shape and rhythm

Radius — these differ0px6px8px9999px0px4px8px12px9999px
Spacing — these differ4px8px12px16px20px24px28px32px36px40px48px56px4px8px12px16px20px24px28px32px40px48px80px120px
Border widths1px1px

Depth

Strategy — these differcolor-blockingprogressive
Shadows — these differ—rgba(255, 255, 255, 0.2) 0px 1px 0px 0px inset, rgba(0, 0, 0, 0.1) 0px -1px 0px 0px insetrgba(0, 0, 0, 0.1) 0px 10px 15px -3px, rgba(0, 0, 0, 0.05) 0px 4px 6px -2pxrgba(0, 0, 0, 0.05) 0px 1px 2px 0pxrgba(0, 0, 0, 0.2) 0px 0px 12px 0px
Gradients — these differ—section: linear-gradient(rgba(41, 44, 70, 0.75), rgba(41, 44, 70, 0.75)), nonesection: linear-gradient(rgba(87, 78, 50, 0.75), rgba(87, 78, 50, 0.75)), nonesection: linear-gradient(to right, rgb(22, 23, 24) 16px, oklch(0.203939 0.00252193 248.11 / 0))section: linear-gradient(rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 0) 50%, rgb(0, 0, 0) 100%)section: linear-gradient(rgba(76, 74, 73, 0.75), rgba(76, 74, 73, 0.75)), nonesection: linear-gradient(rgba(72, 72, 72, 0.75), rgba(72, 72, 72, 0.75)), nonesection: linear-gradient(oklch(0.243142 0.027467 333.61 / 0) 0%, oklch(0.243142 0.027467 333.61) 25%)section: linear-gradient(rgba(77, 77, 77, 0.75), rgba(77, 77, 77, 0.75)), nonesection: linear-gradient(oklch(0.240843 0.0254423 4.81479 / 0) 0%, oklch(0.240843 0.0254423 4.81479) 25%)section: linear-gradient(rgb(47, 109, 93), rgb(47, 109, 93)), nonesection: linear-gradient(oklch(0.203939 0.00252193 248.11 / 0) 0%, oklch(0.203939 0.00252193 248.11) 25%)
Opacity — these differ—0.600.950.92
Z-index — these differdropdown 50dropdown 55dropdown 60base 1base 2dropdown 10dropdown 11

Components

Sharedbutton-primarycardnavigationlinklink-2button-primarycardnavigationlinklink-2
Only here — these differbutton-primary-lgbutton-outlinebutton-outline-smcard-lgfooterbutton-secondarybutton-iconbutton-textbutton-text-smnavigation-smcard-featuredcard-sm
Signature——

Interaction states

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

Measured — these differbutton:hovernav:hoverother:hoverinput:focusother:disabled—

Responsive

Breakpoints — these differ375→335px · 1col768→704px · 1col1024→960px · 3col1280→1180px · 3col1440→1180px · 3col375→225px768→768px1024→1024px1280→1280px1440→1440px

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 differ2026-10-142026-11-03
StylesheetsPartly blockedPartly blocked
Roles unassigned — these differ57

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