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Obsidian vs spectr.pm

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

Obsidian: Obsidian - Sharpen your thinking · Above the fold
Obsidian
obsidian.md· 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.

Obsidian

Heading on canvas

Body copy in the measured muted role.

Primary action
19.2:1 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.

Obsidian

  • canvas#0F0F0F
  • surface#1F1F1F
  • ink#FFFFFF
  • muted#BCBCBC
  • hairline#262626
  • primary#7C3AED
  • on-primary#FFFFFF

3 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.

Obsidian

h1

60px · 600 · shown smaller

h2

60px · 600 · shown smaller

display

48px · 600 · shown smaller

h2

48px · 600 · shown smaller

heading

36px · 400

heading

36px · 600

h2

30px · 600

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.

Obsidian

pill

2px

8px

0px

4px

12px

spectr.pm

0px

Spacing

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

Obsidian

4
8
12
16
24
32
48
92

spectr.pm

4
8
12
16
24
28
32
40

Depth

Shadows cast on each side's own ground.

Obsidian

sm

md

lg

xl

spectr.pm

sm

Buttons

Rendered from the measured computed styles.

Obsidian

primaryfilledprimary-smfilled-lg

spectr.pm

primaryfilledprimary-smtext

The measured values behind the panels above.

Obsidianspectr.pm

At a glance

GroundDarkDark
Corners — these differPillSharp
Display size — these differ60px288px
Spacing base4px4px
Accent colours — these differ48
Type families — these differ12
Ink on canvas — these differ19.2:118.6:1
Components — these differ1311

Colour roles

primary — these differ#7C3AED#894DEF
accent#A88BFA—
canvas — these differ#0F0F0F#0D0D0D
surface — these differ#1F1F1F#171717
ink — these differ#FFFFFF#FAFAFA
body — these differ#EEEEEE#B8B8B8
muted#BCBCBC—
hairline — these differ#262626#2E2E2E
on-primary — these differ#FFFFFF#FAFAFA

Full palette

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

All colours — these differ#7C3AED#A88BFA#6C31E3#8B5CF6#0F0F0F#1F1F1F#FFFFFF#EEEEEE#BCBCBC#B3B3B3#262626#E5E5E5#894DEF#A273F2#14532D#78350F#166534#4ADE80#92400E#FBBF24#0D0D0D#171717#FAFAFA#B8B8B8#2E2E2E#6B6B6B#000000#262626
Semantic——

Typography

Families — these differui-sans-serifInter-e4c28016845df4efJetBrains Mono-33799697913f1f09
hero-display—288px · 900 · 288px · -11.52px · uppercase · Inter-e4c28016845df4ef
h1 — these differ60px · 600 · 60px · -1.2px · ui-sans-serif72px · 800 · 72px · -2.52px · Inter-e4c28016845df4ef
h2 — these differ60px · 600 · 60px · -1.2px · ui-sans-serif44px · 800 · 46.2px · -1.32px · Inter-e4c28016845df4ef
display — these differ48px · 600 · 48px · -1.2px · ui-sans-serif132px · 800 · 198px · -2.64px · Inter-e4c28016845df4ef
heading — these differ36px · 400 · 40px · 0px · ui-sans-serif16px · 600 · 24px · 0px · Inter-e4c28016845df4ef
h3 — these differ20px · 600 · 28px · 0px · ui-sans-serif19px · 600 · 28.5px · 0px · Inter-e4c28016845df4ef
body — these differ18px · 400 · 24px · 0px · ui-sans-serif15px · 500 · 23.25px · 0px · Inter-e4c28016845df4ef
h418px · 600 · 28px · 0px · ui-sans-serif—
link — these differ16px · 500 · 20px · 0px · ui-sans-serif14px · 500 · 20px · 0px · Inter-e4c28016845df4ef
list-item — these differ16px · 400 · 24px · 0px · ui-sans-serif16px · 500 · 24px · 0px · Inter-e4c28016845df4ef
nav-link16px · 400 · 36px · 0px · ui-sans-serif—
quote14px · 400 · 19.6px · 0px · ui-sans-serif—
button — these differ14px · 600 · 20px · 0px · ui-sans-serif15px · 600 · 22.5px · 0px · Inter-e4c28016845df4ef
code—13px · 600 · 19.5px · 1.82px · uppercase · JetBrains Mono-33799697913f1f09
caption — these differ10px · 400 · 20px · 0px · ui-sans-serif12px · 500 · 16.5px · 0px · Inter-e4c28016845df4ef

Shape and rhythm

Radius — these differ0px2px4px8px12px16px20%24px9999px0px
Spacing — these differ4px8px12px16px24px32px48px92px96px112px160px200px4px8px12px16px24px28px32px40px44px48px64px144px
Border widths — these differ—1px

Depth

Strategy — these differlayered-microsingle-tier
Shadows — these differrgb(255, 255, 255) 0px 0px 0px 0px inset, rgba(255, 255, 255, 0.1) 0px 0px 0px 1px inset, rgba(0, 0, 0, 0.1) 0px 20px 25px -5px, rgba(0, 0, 0, 0.1) 0px 8px 10px -6pxrgb(255, 255, 255) 0px 0px 0px 0px inset, rgba(255, 255, 255, 0.1) 0px 0px 0px 1px inset, rgba(0, 0, 0, 0) 0px 0px 0px 0pxrgb(255, 255, 255) 0px 0px 0px 0px inset, rgba(255, 255, 255, 0.05) 0px 0px 0px 1px inset, rgba(0, 0, 0, 0) 0px 0px 0px 0pxrgba(255, 255, 255, 0.024) 0px 1px 0px 1px inset, rgba(0, 0, 0, 0.05) 0px 5px 10px 5pxrgba(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——
Opacity — these differ0.500.400.600.300.701.000.700.900.940.650.36
Z-index — these differbase 5dropdown 10dropdown 40dropdown 50dropdown 10dropdown 50

Components

Sharedbutton-primarybutton-filledbutton-primary-smbutton-textcardfooterlinklink-smnavigationbutton-primarybutton-filledbutton-primary-smbutton-textcardfooterlinklink-smnavigation
Only here — these differbutton-filled-lgcard-smbadge-filledbadge-filled-2button-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 differnav:hoverbutton:hoverbutton:focuslink:hoverother:hoverother:activeother:focus-visibleinput:focusinput:hoverbutton:focus-visiblecard:hoverother:focusother:focus-visibleinput:hoverother:hovercard:hoverother:focusother:disablednav:hovernav:focus-visible

Responsive

Breakpoints — these differ375→338px · 2col768→691px · 6col1024→922px · 8col1280→1120px · 8col1440→1120px · 8col375→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 differ310

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