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anthropic.com vs loom.com

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

anthropic.com
anthropic.com· read 2026-08-09
loom.com
loom.com· read 2026-08-09

Worth knowing

  • Extraction depth differs: 2 pages against 6. The deeper read will usually show more tokens.
  • 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.

anthropic.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.

loom.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.

anthropic.com

No named roles measured.

16 more, no measured role

loom.com

No named roles measured.

17 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.

anthropic.com

h1

104px · 300 · shown smaller

h1

61px · 700 · shown smaller

h2

61px · 400 · shown smaller

h3

24px · 600

body

24px · 400

list-item

20px · 400

link

18px · 600

loom.com

h1

82px · 700 · shown smaller

h1

63px · 700 · shown smaller

h2

44px · 700 · shown smaller

h3

33px · 700

body

27px · 400

h3

25px · 700

button

16px · 400

Corners

Drawn at the measured radii.

anthropic.com

8px

8px

0px

loom.com

pill

44px

42px

12px

6px

14px

Spacing

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

anthropic.com

4
8
12
16
20
24
32
48

loom.com

4
8
16
24
32
36
40
56

Depth

Shadows cast on each side's own ground.

anthropic.com

sm

loom.com

sm

md

lg

xl

Buttons

Rendered from the measured computed styles.

anthropic.com

default

loom.com

default

The measured values behind the panels above.

anthropic.comloom.com

At a glance

Corners — these differSoftPill
Display size — these differ104px82px
Spacing base4px4px
Accent colours — these differ56
Type families — these differ42
Components — these differ34

Full palette

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

All colours — these differ#D97757#E3DACC#C6613F#788C5D#BCD1CA#6A9BCC#C46686#EBCECE#141413#FAF9F5#B0AEA5#000000#C6C4BA#87867F#0F0F0E#73726C#292A2E#101214#0000#1868DB#8FB8F6#BF63F3#48245D#FF613D#FFFFFF#000000#E9F2FE#F8EEFE#6C6F77#7D818A#EFF0FF#8C8F97#FFA900
Semantic — these differ—Warning #FFA900

Typography

Families — these differAnthropic SansAnthropic SerifanthropicSerifanthropicSansCharlie DisplayCharlie Text
h1 — these differ60.8653px · 700 · 66.9518px · Anthropic Sans63.2692px · 700 · 65.104px · Charlie Display
h2 — these differ60.8653px · 400 · 66.9518px · Anthropic Serif44.1538px · 700 · 50.4678px · Charlie Display
h3 — these differ24px · 600 · 31.2px · Anthropic Sans32.5px · 700 · 41.3725px · Charlie Display
body — these differ24px · 400 · 33.6px · Anthropic Serif26.6538px · 400 · 40.6205px · Charlie Text
list-item20px · 400 · 28px · Anthropic Serif—
link18px · 600 · 25.2px · Anthropic Serif—
span — these differ16px · 400 · 16px · Anthropic Sans15px · 400 · 22.5px · Charlie Text
button—16px · 400 · 24px · Charlie Text
input—14px · 400 · 21.98px · Charlie Text
h4—12.6154px · 700 · 18.3554px · Charlie Text
h612px · 500 · 15px · Anthropic Sans—
label12px · 400 · 15px · Anthropic Sans—
small — these differ12px · 400 · 16.8px · anthropicSans12.6154px · 400 · 18.3554px · Charlie Text

Shape and rhythm

Radius — these differ0px 8px 8px 0px8px 0px 0px 8px8px6px12px14px41.6923px44px9999px
Spacing — these differ4px8px12px16px20px24px32px48px60px64px76px180px4px8px16px24px32px36px40px56px64px72px92px112px
Border widths1px1px

Depth

Strategy——
Shadows — these differrgba(0, 0, 0, 0.01) 0px 2px 2px 0px, rgba(0, 0, 0, 0.02) 0px 4px 4px 0px, rgba(0, 0, 0, 0.04) 0px 16px 24px 0pxrgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0.04) 0px 2px 6px 0px, rgba(0, 0, 0, 0.06) 0px 5px 18px 0px, rgba(0, 0, 0, 0.1) 0px 24px 83px 0pxrgba(0, 0, 0, 0.03) 0px 4px 6.4px 0px, rgba(0, 0, 0, 0.05) 0px 3px 9.6px 0px, rgba(0, 0, 0, 0.07) 0px 8px 32px 0px, rgba(0, 0, 0, 0.1) 0px 32px 96px 0pxrgba(0, 0, 0, 0.25) 0px 15px 50px 0pxrgba(0, 0, 0, 0.04) 0px 2px 6px 0px, rgba(0, 0, 0, 0.06) 0px 5px 18px 0px, rgba(0, 0, 0, 0.1) 0px 24px 83px 0px
Gradients——
Opacity — these differ0.010.340.500.300.000.130.970.700.20
Z-index — these differbase 1base 2base 3base 5dropdown 10sticky 101modal 1000modal 9999base 1dropdown 10dropdown 20dropdown 30

Components

Sharedbuttonnavigationlinkbuttonnavigationlink
Only here — these differ—card
Signature——

How this was measured

Differences here are ours, not the brands'.

Pages read — these differ26
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.