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spectr.pm vs Tailwind CSS

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
Tailwind CSS: Tailwind CSS - Rapidly build modern websites without ever leaving your HTML. · Above the fold
Tailwind CSS
tailwindcss.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

Tailwind CSS

No colour roles measured on this side, so there is no ground to paint. The palette below is still real; re-extracting the site fills this in.

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

Tailwind CSS

  • canvas#FFFFFF

1 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

Tailwind CSS

h1

96px · 400 · shown smaller

h2

40px · 500 · shown smaller

h3

36px · 600

h1

30px · 500

heading

30px · 600

body

24px · 500

body

20px · 500

Corners

Drawn at the measured radii.

spectr.pm

0px

Tailwind CSS

0px

pill

pill

4px

8px

16px

Spacing

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

spectr.pm

4
8
12
16
24
28
32
40

Tailwind CSS

4
8
12
16
24
28
32
40

Depth

Shadows cast on each side's own ground.

spectr.pm

sm

Tailwind CSS

sm

md

lg

xl

Buttons

Rendered from the measured computed styles.

spectr.pm

primaryfilledprimary-smtext

Tailwind CSS

filledtexttext-2

The measured values behind the panels above.

spectr.pmTailwind CSS

At a glance

Ground — these differDarkLight
Corners — these differSharpPill
Display size — these differ288px96px
Spacing base4px4px
Accent colours — these differ80
Type families22
Ink on canvas18.6:1—
Components — these differ118

Colour roles

primary#894DEF—
canvas — these differ#0D0D0D#FFFFFF
surface#171717—
ink#FAFAFA—
body#B8B8B8—
hairline#2E2E2E—
on-primary#FAFAFA—

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#FFFFFF#000000
Semantic——

Typography

Families — these differInter-e4c28016845df4efJetBrains Mono-33799697913f1f09interplexMono
hero-display288px · 900 · 288px · -11.52px · uppercase · Inter-e4c28016845df4ef—
display132px · 800 · 198px · -2.64px · Inter-e4c28016845df4ef—
h1 — these differ72px · 800 · 72px · -2.52px · Inter-e4c28016845df4ef96px · 400 · 96px · -4.8px · inter
h2 — these differ44px · 800 · 46.2px · -1.32px · Inter-e4c28016845df4ef18px · 600 · 28px · -0.45px · inter
h3 — these differ19px · 600 · 28.5px · 0px · Inter-e4c28016845df4ef14px · 600 · 28px · 0px · inter
heading — these differ16px · 600 · 24px · 0px · Inter-e4c28016845df4ef30px · 600 · 36px · 0px · inter
list-item — these differ16px · 500 · 24px · 0px · Inter-e4c28016845df4ef14px · 400 · 28px · 0px · inter
input—16px · 400 · 24px · 0px · inter
body — these differ15px · 500 · 23.25px · 0px · Inter-e4c28016845df4ef14px · 400 · 28px · 0px · inter
button — these differ15px · 600 · 22.5px · 0px · Inter-e4c28016845df4ef12px · 400 · 20px · 0px · inter
link — these differ14px · 500 · 20px · 0px · Inter-e4c28016845df4ef14px · 400 · 24px · 0px · inter
h4—14px · 600 · 24px · 0px · inter
code — these differ13px · 600 · 19.5px · 1.82px · uppercase · JetBrains Mono-33799697913f1f0912px · 500 · 24px · 1.2px · uppercase · plexMono
caption — these differ12px · 500 · 16.5px · 0px · Inter-e4c28016845df4ef12px · 400 · 20px · 0px · inter

Shape and rhythm

Radius — these differ0px0px4px8px16px9999px
Spacing — these differ4px8px12px16px24px28px32px40px44px48px64px144px4px8px12px16px24px28px32px40px56px64px96px160px
Border widths — these differ1px—

Depth

Strategy — these differsingle-tierlayered-micro
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 -4pxrgba(0, 0, 0, 0) 0px 0px 0px 0px, oklab(0.999994 0.0000455678 0.0000200868 / 0.02) 0px 0px 0px 1px inset, 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 0pxrgba(0, 0, 0, 0) 0px 0px 0px 0px, oklab(0.129999 -0.00404751 -0.027702 / 0.08) 0px 0px 0px 1px inset, 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 0pxrgba(0, 0, 0, 0) 0px 0px 0px 0px, oklab(0.999994 0.0000455678 0.0000200868 / 0.05) 0px 0px 0px 1px inset, 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 0pxrgba(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 20px 25px -5px, rgba(0, 0, 0, 0.1) 0px 8px 10px -6px
Gradients — these differ—section: radial-gradient(oklab(0.129999 -0.00404751 -0.027702 / 0.05) 1px, rgba(0, 0, 0, 0) 0px)section: repeating-linear-gradient(315deg, oklab(0 0 0 / 0.05) 0px, oklab(0 0 0 / 0.05) 1px, rgba(0, 0, 0, 0) 0px, rgba(0, 0, 0, 0) 50%)
Opacity — these differ1.000.700.900.940.650.360.750.400.600.250.200.04
Z-index — these differdropdown 10dropdown 50base 1dropdown 10dropdown 50

Components

Sharedbutton-filledbutton-textbutton-text-2navigationfooterlinklink-smbutton-filledbutton-textbutton-text-2navigationfooterlinklink-sm
Only here — these differbutton-primarybutton-primary-smcardcard-lgfooter-2
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-visibleother:hoverother:focus

Responsive

Breakpoints — these differ375→343px · 6col768→704px · 3col1024→960px · 5col1280→1216px · 5col1440→1376px · 5col375→359px · 2col768→720px · 3col1024→944px · 3col1280→1200px · 4col1440→1360px · 4col

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
StylesheetsReadableReadable
Roles unassigned — these differ101

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