Substack vs Calm
61 token-level differences between these two design systems.
Background
#ffffff → #0a1f3a Text
#363737 → #fafafa Brand
#ff6719 → #0066ff Border
rgba(0, 0, 0, 0.10) → #243d65 Display font
Cahuenga → Aktiv Grotesk Body size
19px → 16px colors 54 changed
~
bg #ffffff → #0a1f3a ~
bg-elev #fafaf7 → #13294a ~
surface #ffffff → #13294a ~
text #363737 → #fafafa ~
text-strong #1a1a1a → #ffffff ~
text-soft #666c70 → #7d8a9e ~
text-faint #a8a8a8 → #5a6678 ~
text-muted #878787 → #a8b3c5 ~
brand #ff6719 → #0066ff ~
brand-hover #e85412 → #0052d6 ~
brand-deep #cc4a0e → #001f5c ~
border rgba(0, 0, 0, 0.10) → #243d65 ~
border-strong rgba(0, 0, 0, 0.20) → #365182 ~
border-soft rgba(0, 0, 0, 0.06) → #1c3458 ~
success #0d8050 → #42d68a ~
warning #d97706 → #ffba43 ~
danger #dc2626 → #ff6b6b ~
info #2563eb → #0066ff +
bg-strong #040c1a +
bg-elev-strong #1c3458 +
bg-twilight #1a2c52 +
bg-dawn #2a3d6e +
surface-soft #1c3458 +
surface-strong #243d65 +
surface-light #fafafa +
brand-active #003fa3 +
brand-pale #a8c8ff +
brand-soft #0d2456 +
brand-glow #3380ff +
text-on-brand #ffffff +
text-on-light #0a1f3a +
link #fafafa +
link-hover #0066ff +
border-input #4a648a +
star-white #ffffff +
star-blue #a8c8ff +
twilight-purple #7c5fb8 +
dusk-pink #e88fa8 +
scrim rgba(4,12,26,0.8) +
shadow-card rgba(0,0,0,0.5) +
shadow-elev rgba(0,0,0,0.7) +
shadow-blue-glow rgba(0,102,255,0.25) −
bg-cream #fbf9f4 −
bg-soft #f6f6f3 −
surface-warm #fafaf7 −
text-link #363737 −
brand-tint rgba(255, 103, 25, 0.10) −
brand-tint-strong rgba(255, 103, 25, 0.18) −
on-brand #ffffff −
border-warm rgba(0, 0, 0, 0.08) −
selection-bg rgba(255, 103, 25, 0.20) −
shadow-soft rgba(0, 0, 0, 0.06) −
shadow-medium rgba(0, 0, 0, 0.10) −
reading-rule rgba(0, 0, 0, 0.08) typography 5 changed
~
display {"family":"Cahuenga","size":56} → {"family":"Aktiv Grotesk","size":72} ~
h1 {"family":"Cahuenga","size":40} → {"family":"Aktiv Grotesk","size":40} ~
h2 {"family":"Cahuenga","size":32} → {"family":"Aktiv Grotesk","size":32} ~
body {"family":"Spectral","size":19} → {"family":"Aktiv Grotesk","size":16} ~
label {"family":"Monaco","size":13} → {"family":"Aktiv Grotesk","size":11} radius 2 changed
~
button 6px → 12px ~
card 12px → 16px spacing identical
No differences.