DesignMD
Discover
Discover

linear.app vs slack.com

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

linear.app
linear.app· read 2026-08-09
slack.com
slack.com· read 2026-08-09

Worth knowing

  • Neither side has named colour roles, so both predate role-based extraction. Re-generating either one fills in the palette comparison.
  • 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.

linear.app

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.

slack.com

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.

linear.app

No named roles measured.

16 more, no measured role

slack.com

No named roles measured.

18 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.

linear.app

h2

72px · 510 · shown smaller

h1

64px · 510 · shown smaller

h2

48px · 510 · shown smaller

h1

48px · 590 · shown smaller

h1

40px · 510 · shown smaller

h3

24px · 590

h3

20px · 590

slack.com

h1

64px · 700 · shown smaller

h2

58px · 600 · shown smaller

h1

50px · 700 · shown smaller

h2

32px · 700

h3

24px · 700

body

20px · 400

body

18px · 400

Corners

Drawn at the measured radii.

linear.app

4px

pill

6px

12px

8px

pill

slack.com

4px

16px

30px

pill

12px

Spacing

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

linear.app

4
8
12
16
20
24
32
40

slack.com

8
16
20
24
32
36
40
72

Depth

Shadows cast on each side's own ground.

linear.app

sm

md

slack.com

sm

Buttons

Rendered from the measured computed styles.

linear.app

default

slack.com

default

The measured values behind the panels above.

linear.appslack.com

At a glance

CornersPillPill
Display size — these differ72px64px
Spacing base — these differ4px8px
Accent colours — these differ27
Type families22
Components — these differ54

Full palette

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

All colours — these differ#62666D#08090A#0F1011#0003#0009#0000#F91880#00BA7C#F7F8F8#8A8F98#FFFFFF#D0D6E0#3E3E44#000000#E5E5E6#18191A#1264A3#FFEEAA#611F69#ACCE#4A154B#481A54#FBF3E0#D1F1FF#000000#1D1D1D#696969#FFFFFF#EAF5FE#F9F0FF#EBF7E6#FEF0F3#45C65A#FCC003
Semantic — these differ—Success #45C65AWarning #FCC003

Typography

Families — these differInter VariableBerkeley MonoSalesforce-SansSalesforce-Avant-Garde
h1 — these differ64px · 510 · 64px · Inter Variable50px · 700 · 56px · Salesforce-Avant-Garde
h2 — these differ48px · 510 · 48px · Inter Variable32px · 700 · 40px · Salesforce-Avant-Garde
h3 — these differ24px · 590 · 31.92px · Inter Variable24px · 700 · 30px · Salesforce-Avant-Garde
span — these differ16px · 400 · 24px · Inter Variable15px · 700 · normal · Salesforce-Sans
h416px · 590 · 24px · Inter Variable—
body — these differ15px · 400 · 24px · Inter Variable20px · 400 · 30px · Salesforce-Sans
link — these differ14px · 510 · 21px · Inter Variable14px · 700 · 18.004px · Salesforce-Sans
label14px · 400 · 21px · Inter Variable—
code14px · 400 · 21px · Berkeley Mono—
small—14px · 400 · 20.006px · Salesforce-Sans
input — these differ13.3333px · 400 · normal · Inter Variable16px · 400 · normal · Salesforce-Sans
button — these differ13px · 400 · 19.5px · Inter Variable15px · 400 · normal · Salesforce-Sans

Shape and rhythm

Radius — these differ4px6px8px12px9999px4px12px16px30px9999px
Spacing — these differ4px8px12px16px20px24px32px40px48px56px76px96px8px16px20px24px32px36px40px72px
Border widths1px1px

Depth

Strategy——
Shadows — these differrgba(0, 0, 0, 0.4) 0px 1px 0px 0pxrgba(255, 255, 255, 0.03) 0px 0px 0px 1px inset, rgba(255, 255, 255, 0.04) 0px 1px 0px 0px inset, rgba(0, 0, 0, 0.6) 0px 0px 0px 1px, rgba(0, 0, 0, 0.1) 0px 4px 4px 0pxrgba(0, 0, 0, 0.1) 0px 0px 32px 0px
Gradients——
Opacity — these differ0.300.600.400.700.800.900.550.60
Z-index — these differbase 1base 2base 3dropdown 50sticky 100sticky 995sticky 996sticky 997base 1base 2base 3base 4base 6dropdown 10dropdown 99sticky 100

Components

Sharedbuttoncardnavigationlinkbuttoncardnavigationlink
Only here — these differinput—
Signature——

How this was measured

Differences here are ours, not the brands'.

Pages read66
Extracted2026-08-092026-08-09
Stylesheets——
Roles unassigned——

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