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spectr.pm vs Superhuman

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

spectr.pm: Spectr - AI Product Ops: Meetings to PRDs, Specs & Stories · Above the fold
spectr.pm
spectr.pm· read 2026-10-14
Superhuman: Superhuman: Docs, Mail, and AI That Work Everywhere · Above the fold
Superhuman
superhuman.com· read 2026-11-03

Ground and ink

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

spectr.pm

Heading on canvas

Body copy in the measured muted role.

Primary action
18.6:1 ink on canvas

Superhuman

Heading on canvas

Body copy in the measured muted role.

Primary action
14.7:1 ink on canvas

Palette

Named roles first, then every colour measured without one.

spectr.pm

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

10 more, no measured role

Superhuman

  • canvas#FFFFFF
  • surface#73716D
  • ink#292827
  • primary#714CB6
  • on-primary#FFFFFF

8 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.

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

Superhuman

h1

64px · 540 · shown smaller

h2

64px · 540 · shown smaller

h1

61px · 460 · shown smaller

display

49px · 460 · shown smaller

h3

49px · 540 · shown smaller

h2

49px · 540 · shown smaller

h2

49px · 460 · shown smaller

Corners

Drawn at the measured radii.

spectr.pm

0px

Superhuman

0px

8px

6px

pill

4px

12px

Spacing

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

spectr.pm

4
8
12
16
24
28
32
40

Superhuman

4
8
12
16
20
24
32
40

Depth

Shadows cast on each side's own ground.

spectr.pm

sm

Superhuman

sm

md

lg

xl

Buttons

Rendered from the measured computed styles.

spectr.pm

primaryfilledprimary-smtext

Superhuman

texttext-smoutline

The measured values behind the panels above.

spectr.pmSuperhuman

At a glance

Ground — these differDarkLight
Corners — these differSharpPill
Display size — these differ288px64px
Spacing base4px4px
Accent colours — these differ86
Type families — these differ23
Ink on canvas — these differ18.6:114.7:1
Components — these differ1112

Colour roles

primary — these differ#894DEF#714CB6
accent—#D4C7FF
link—#4F5022
canvas — these differ#0D0D0D#FFFFFF
surface — these differ#171717#73716D
ink — these differ#FAFAFA#292827
body#B8B8B8—
hairline#2E2E2E—
on-primary — these differ#FAFAFA#FFFFFF

Full palette

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

All colours — these differ#894DEF#A273F2#14532D#78350F#166534#4ADE80#92400E#FBBF24#0D0D0D#171717#FAFAFA#B8B8B8#2E2E2E#6B6B6B#000000#262626#714CB6#D4C7FF#4F5022#421D24#281647#0A476D#0C4243#E8E0FF#FFFFFF#73716D#F7F5F2#292827#000000#141413#DEDBD5
Semantic——

Typography

Families — these differInter-e4c28016845df4efJetBrains Mono-33799697913f1f09Super Sans VFSuper Serif VFSuper Sans Mono VF
hero-display288px · 900 · 288px · -11.52px · uppercase · Inter-e4c28016845df4ef—
display — these differ132px · 800 · 198px · -2.64px · Inter-e4c28016845df4ef49px · 460 · 58.8px · -1.35px · Super Sans VF
h1 — these differ72px · 800 · 72px · -2.52px · Inter-e4c28016845df4ef61px · 460 · 67.1px · -1.68px · Super Sans VF
h2 — these differ44px · 800 · 46.2px · -1.32px · Inter-e4c28016845df4ef64px · 540 · 57.6px · 0px · Super Sans VF
h3 — these differ19px · 600 · 28.5px · 0px · Inter-e4c28016845df4ef28px · 540 · 32px · -0.63px · Super Sans VF
quote—18px · 460 · 27px · -0.13px · Super Serif VF
heading — these differ16px · 600 · 24px · 0px · Inter-e4c28016845df4ef18.72px · 700 · 28.08px · 0px · Super Sans VF
list-item — these differ16px · 500 · 24px · 0px · Inter-e4c28016845df4ef16px · 460 · 19.2px · 0px · Super Sans VF
table-header—16px · 700 · 18px · -0.12px · Super Sans VF
input—16px · 460 · 19.2px · 0px · Super Sans VF
body — these differ15px · 500 · 23.25px · 0px · Inter-e4c28016845df4ef16px · 600 · 16px · 0px · Super Sans VF
button — these differ15px · 600 · 22.5px · 0px · Inter-e4c28016845df4ef20px · 460 · 22px · -0.55px · Super Sans VF
link — these differ14px · 500 · 20px · 0px · Inter-e4c28016845df4ef16px · 460 · 24px · 0px · Super Sans VF
code13px · 600 · 19.5px · 1.82px · uppercase · JetBrains Mono-33799697913f1f09—
caption — these differ12px · 500 · 16.5px · 0px · Inter-e4c28016845df4ef12px · 540 · 18px · -0.09px · Super Sans VF

Shape and rhythm

Radius — these differ0px0px4px6px8px10px12px16px24px9999px
Spacing — these differ4px8px12px16px24px28px32px40px44px48px64px144px4px8px12px16px20px24px32px40px64px80px96px128px
Border widths1px1px

Depth

Strategy — these differsingle-tierprogressive
Shadows — these differrgba(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 -4pxcolor(srgb 0.278431 0.270588 0.262745 / 0.16) 0px -4px 8px 0.5pxcolor(srgb 0.45098 0.443137 0.427451 / 0.2) 0px 0px 0px 1px insetrgb(255, 255, 255) 0px -5px 0px 0px, rgb(255, 255, 255) 0px 5px 0px 0pxcolor(srgb 0.988235 0.980392 0.968627 / 0.2) 0px 0px 0px 1px inset
Gradients — these differ—hero: linear-gradient(to left bottom, rgba(168, 164, 216, 0.5), rgba(107, 165, 232, 0.5), rgba(176, 112, 192, 0.6), rgba(144, 136, 208, 0.5)), linear-gradient(rgb(124, 154, 211), rgb(49, 70, 130))
Opacity — these differ1.000.700.900.940.650.360.600.040.980.40
Z-index — these differdropdown 10dropdown 50base 1base 2base 3sticky 200sticky 201sticky 300

Components

Sharedbutton-textcardnavigationlinklink-smbutton-textcardnavigationlinklink-sm
Only here — these differbutton-primarybutton-filledbutton-primary-smbutton-text-2card-lgfooterbutton-text-smbutton-outlinecard-smnavigation-2badge-filledbadge-filled-lgbadge-outline
Signature——

Interaction states

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

Measured — these differother:focus-visibleinput:hoverother:hovercard:hoverother:focusother:disablednav:hovernav:focus-visiblelink:focus

Responsive

Breakpoints — these differ375→343px · 6col768→704px · 3col1024→960px · 5col1280→1216px · 5col1440→1376px · 5col375→343px · 3col768→720px · 3col1024→976px · 3col1280→1232px · 6col1440→1376px · 6col

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 differ2026-10-142026-11-03
Stylesheets — these differReadablePartly blocked
Roles unassigned — these differ108

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