DesignMD
Discover
Discover

github.com vs mercury.com

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

github.com
github.com· read 2026-08-09
mercury.com
mercury.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.

github.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.

mercury.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.

github.com

No named roles measured.

16 more, no measured role

mercury.com

No named roles measured.

12 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.

github.com

h1

64px · 425 · shown smaller

h1

64px · 800 · shown smaller

h1

56px · 440 · shown smaller

h3

40px · 460 · shown smaller

body

28px · 480

h2

24px · 600

h3

22px · 480

mercury.com

h1

49px · 480 · shown smaller

h2

42px · 480 · shown smaller

body

21px · 480

h3

16px · 400

button

16px · 420

small

12px · 480

Corners

Drawn at the measured radii.

github.com

6px

8px

12px

60px

16px

16px

mercury.com

4px

pill

40px

32px

32px

Spacing

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

github.com

4
8
12
16
20
24
32
40

mercury.com

4
8
12
16
24
32
40
72

Depth

Shadows cast on each side's own ground.

github.com

sm

md

lg

xl

mercury.com

sm

md

lg

Buttons

Rendered from the measured computed styles.

github.com

default

mercury.com

default

The measured values behind the panels above.

github.commercury.com

At a glance

Corners — these differRoundedPill
Display size — these differ64px49px
Spacing base4px4px
Accent colours — these differ34
Type families22
Components55

Full palette

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

All colours — these differ#0000#010409#58635B#1F2328#FFF0#25292E#59636E#656C76#000000#FFFFFF#F0F6FC#D1D9E0#9198A1#D2D9D4#CF222E#D29922#AFB2CE#9CB4E8#171721#272735#5266EB#0000#000000#EDEDF3#C3C3CC#FFFFFF#EBEBEB#F5F5F5
Semantic — these differError/Danger #CF222EWarning #D29922—

Typography

Families — these differMona Sans VFMona SansarcadiaDisplayarcadia
h1 — these differ56px · 440 · 61.6px · Mona Sans49.3472px · 480 · 54.2819px · arcadiaDisplay
h2 — these differ24px · 600 · 36px · Mona Sans VF42px · 480 · 48.3px · arcadiaDisplay
h3 — these differ22px · 480 · 30.8px · Mona Sans16px · 400 · 24px · arcadia
body — these differ18px · 400 · 27px · Mona Sans21.008px · 480 · 25.2096px · arcadiaDisplay
button — these differ16px · 400 · 24px · Mona Sans VF16px · 420 · 16px · arcadia
label16px · 400 · 24px · Mona Sans—
span14px · 400 · 21px · Mona Sans VF—
h414px · 600 · 21px · Mona Sans—
small—12px · 480 · 16.8px · arcadia

Shape and rhythm

Radius — these differ6px8px12px16px 0px 0px16px60px4px32px32px 0px 0px 32px40px9999px
Spacing — these differ4px8px12px16px20px24px32px40px48px64px80px128px4px8px12px16px24px32px40px72px
Border widths — these differ1px2px1px

Depth

Strategy——
Shadows — these differrgba(209, 217, 224, 0.25) 0px 0px 0px 1px, rgba(37, 41, 46, 0.04) 0px 6px 12px -3px, rgba(37, 41, 46, 0.12) 0px 6px 18px 0pxrgba(0, 0, 0, 0.01) 0px 100px 80px 0px, rgba(0, 0, 0, 0.02) 0px 41px 33px 0px, rgba(0, 0, 0, 0.02) 0px 22px 17px 0px, rgba(0, 0, 0, 0.03) 0px 12px 10px 0px, rgba(0, 0, 0, 0.04) 0px 6px 5px 0px, rgba(0, 0, 0, 0.07) 0px 2px 2px 0pxrgba(0, 0, 0, 0.15) 0px 0px 0px 1px insetrgba(209, 217, 224, 0) 0px 0px 0px 1px, rgba(37, 41, 46, 0.32) 0px 56px 112px 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(86, 86, 118, 0.1) 0px 0px 6px 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(28, 28, 35, 0.02) 0px 10px 16px 0px, rgba(28, 28, 35, 0.04) 0px 6px 10px 0px, rgba(28, 28, 35, 0.09) 0px 0px 3px 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, 0.05) 0px 0px 3px 0px, rgba(0, 0, 0, 0.05) 0px 8px 12px 0px, rgba(0, 0, 0, 0.05) 0px 12px 20px 0px
Gradients——
Opacity — these differ0.500.600.080.300.570.580.240.70
Z-index — these differbase 1base 2base 3dropdown 32dropdown 91dropdown 92dropdown 98dropdown 99base 1base 2base 3base 5dropdown 10dropdown 20dropdown 99

Components

Sharedbuttoninputcardnavigationlinkbuttoninputcardnavigationlink
Only here——
Signature——

How this was measured

Differences here are ours, not the brands'.

Pages read6—
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.