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Are.na vs spectr.pm

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

Are.na: Are.na · Above the fold
Are.na
are.na· read 2026-11-03
spectr.pm: Spectr - AI Product Ops: Meetings to PRDs, Specs & Stories · Above the fold
spectr.pm
spectr.pm· read 2026-10-14

Ground and ink

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

Are.na

Heading on canvas

Body copy in the measured muted role.

Primary action
21:1 ink on canvas

spectr.pm

Heading on canvas

Body copy in the measured muted role.

Primary action
18.6:1 ink on canvas

Palette

Named roles first, then every colour measured without one.

Are.na

  • canvas#000000
  • ink#FFFFFF
  • muted#999999
  • hairline#EDEDED
  • primary#00075F

2 more, no measured role

spectr.pm

  • canvas#0D0D0D
  • surface#171717
  • ink#FAFAFA
  • hairline#2E2E2E
  • primary#894DEF
  • on-primary#FAFAFA

10 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.

Are.na

heading

32px · 400

h1

28px · 700

hero-display

28px · 700

body

24px · 400

h2

19px · 700

h3

19px · 400

h1

19px · 400

spectr.pm

hero-display

288px · 900 · shown smaller

display

280px · 900 · shown smaller

display

252px · 900 · shown smaller

display

200px · 900 · shown smaller

display

132px · 800 · shown smaller

display

99px · 600 · shown smaller

h2

92px · 800 · shown smaller

Corners

Drawn at the measured radii.

Are.na

0px

3px

spectr.pm

0px

Spacing

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

Are.na

4
8
12
16
20
24
28
32

spectr.pm

4
8
12
16
24
28
32
40

Depth

Shadows cast on each side's own ground.

Are.na

No shadows measured.

spectr.pm

sm

Buttons

Rendered from the measured computed styles.

Are.na

filledprimaryfilled-smtext

spectr.pm

primaryfilledprimary-smtext

The measured values behind the panels above.

Are.naspectr.pm

At a glance

GroundDarkDark
Corners — these differBarely roundedSharp
Display size — these differ32px288px
Spacing base4px4px
Accent colours — these differ28
Type families — these differ12
Ink on canvas — these differ21.0:118.6:1
Components — these differ1311

Colour roles

primary — these differ#00075F#894DEF
canvas — these differ#000000#0D0D0D
surface—#171717
ink — these differ#FFFFFF#FAFAFA
body — these differ#B2B2B2#B8B8B8
muted#999999—
hairline — these differ#EDEDED#2E2E2E
on-primary—#FAFAFA

Full palette

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

All colours — these differ#00075F#5E6DEE#000000#E2DFE9#FFFFFF#B2B2B2#999999#696969#EDEDED#333333#894DEF#A273F2#14532D#78350F#166534#4ADE80#92400E#FBBF24#0D0D0D#171717#FAFAFA#B8B8B8#2E2E2E#6B6B6B#000000#262626
Semantic——

Typography

Families — these differarealInter-e4c28016845df4efJetBrains Mono-33799697913f1f09
display—132px · 800 · 198px · -2.64px · Inter-e4c28016845df4ef
hero-display — these differ28px · 700 · 35px · 0px · areal288px · 900 · 288px · -11.52px · uppercase · Inter-e4c28016845df4ef
h2 — these differ19.2px · 700 · 27.84px · 0px · areal44px · 800 · 46.2px · -1.32px · Inter-e4c28016845df4ef
h3 — these differ19.2px · 400 · 23.04px · 0px · areal19px · 600 · 28.5px · 0px · Inter-e4c28016845df4ef
heading — these differ19.2px · 400 · 27.84px · 0px · areal16px · 600 · 24px · 0px · Inter-e4c28016845df4ef
button — these differ16px · 400 · 23.2px · 0px · areal15px · 600 · 22.5px · 0px · Inter-e4c28016845df4ef
h1 — these differ16px · 700 · 23.2px · 0px · areal72px · 800 · 72px · -2.52px · Inter-e4c28016845df4ef
link — these differ16px · 400 · 16px · 0px · areal14px · 500 · 20px · 0px · Inter-e4c28016845df4ef
list-item—16px · 500 · 24px · 0px · Inter-e4c28016845df4ef
code—13px · 600 · 19.5px · 1.82px · uppercase · JetBrains Mono-33799697913f1f09
body — these differ12.5px · 400 · 16.875px · 0px · areal15px · 500 · 23.25px · 0px · Inter-e4c28016845df4ef
nav-link12.5px · 700 · 0px · 0px · areal—
caption — these differ10px · 600 · 10px · 0px · uppercase · areal12px · 500 · 16.5px · 0px · Inter-e4c28016845df4ef

Shape and rhythm

Radius — these differ0px3px0px
Spacing — these differ4px8px12px16px20px24px28px32px36px44px64px132px4px8px12px16px24px28px32px40px44px48px64px144px
Border widths1px1px

Depth

Strategy — these differcolor-blockingsingle-tier
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, 0.1) 0px 10px 15px -3px, rgba(0, 0, 0, 0.1) 0px 4px 6px -4px
Gradients — these differsection: linear-gradient(rgba(0, 0, 0, 0), rgb(255, 255, 255) 88%)section: linear-gradient(rgba(0, 0, 0, 0) 0%, rgba(247, 247, 247, 0.6) 35%, rgba(247, 247, 247, 0.6) 65%, rgba(0, 0, 0, 0) 100%)—
Opacity — these differ0.850.500.920.420.830.331.000.700.900.940.650.36
Z-index — these differbase 1base 2base 3base 4sticky 100sticky 200toast 2147483647dropdown 10dropdown 50

Components

Sharedbutton-filledbutton-primarybutton-textnavigationfooterlinklink-smcardbutton-filledbutton-primarybutton-textnavigationfooterlinklink-smcard
Only here — these differbutton-filled-smbutton-outlinebutton-text-smnavigation-2footer-2button-primary-smbutton-text-2card-lg
Signature——

Interaction states

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

Measured — these differother:focus-visibleother:hoverlink:hoverother:activeother:disabledother:focusinput:hoverbutton:focus-visiblelink:focus-visiblelink:focusbutton:hoverother:focus-visibleinput:hoverother:hovercard:hoverother:focusother:disablednav:hovernav:focus-visible

Responsive

Breakpoints — these differ375→345px · 2col768→638px · 2col1024→894px · 2col1280→1150px · 2col1440→1310px · 2col375→343px · 6col768→704px · 3col1024→960px · 5col1280→1216px · 5col1440→1376px · 5col

Themes

Measured on the live site, not derived.

SupportSingle themeSingle theme

How this was measured

Differences here are ours, not the brands'.

Pages read66
Extracted — these differ2026-11-032026-10-14
StylesheetsReadableReadable
Roles unassigned — these differ210

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