Substack vs Tailwind CSS
64 token-level differences between these two design systems.
Background
#ffffff → #ffffff Text
#363737 → #0f172a Brand
#ff6719 → #06b6d4 Border
rgba(0, 0, 0, 0.10) → #e2e8f0 Display font
Cahuenga → Inter Variable Body size
19px → 16px colors 58 changed
~
bg-elev #fafaf7 → #f1f5f9 ~
text #363737 → #0f172a ~
text-soft #666c70 → #475569 ~
text-faint #a8a8a8 → #94a3b8 ~
text-muted #878787 → #64748b ~
brand #ff6719 → #06b6d4 ~
brand-hover #e85412 → #0891b2 ~
brand-deep #cc4a0e → #155e75 ~
border rgba(0, 0, 0, 0.10) → #e2e8f0 ~
border-strong rgba(0, 0, 0, 0.20) → #cbd5e1 ~
border-soft rgba(0, 0, 0, 0.06) → #f1f5f9 ~
shadow-soft rgba(0, 0, 0, 0.06) → rgba(15,23,42,0.04) ~
shadow-medium rgba(0, 0, 0, 0.10) → rgba(15,23,42,0.08) +
bg-quiet #f8fafc +
bg-elev-2 #e2e8f0 +
bg-tint #ecfeff +
bg-tint-2 #cffafe +
surface-2 #f8fafc +
text-quiet #cbd5e1 +
brand-active #0e7490 +
brand-soft #cffafe +
brand-soft-2 #ecfeff +
brand-bright #22d3ee +
accent-sky #0ea5e9 +
accent-sky-soft #e0f2fe +
accent-blue #3b82f6 +
accent-violet #8b5cf6 +
accent-pink #ec4899 +
accent-emerald #10b981 +
accent-amber #f59e0b +
accent-rose #f43f5e +
border-brand #06b6d4 +
link #0891b2 +
link-hover #0e7490 +
code-bg #0f172a +
code-bg-light #1e293b +
code-text #e2e8f0 +
code-keyword #22d3ee +
code-string #86efac +
code-attribute #fbbf24 +
code-comment #64748b +
code-tag #f87171 +
shadow-strong rgba(15,23,42,0.16) +
shadow-deep rgba(15,23,42,0.24) −
bg-cream #fbf9f4 −
bg-soft #f6f6f3 −
surface-warm #fafaf7 −
text-strong #1a1a1a −
text-link #363737 −
brand-tint rgba(255, 103, 25, 0.10) −
brand-tint-strong rgba(255, 103, 25, 0.18) −
border-warm rgba(0, 0, 0, 0.08) −
selection-bg rgba(255, 103, 25, 0.20) −
success #0d8050 −
warning #d97706 −
danger #dc2626 −
info #2563eb −
reading-rule rgba(0, 0, 0, 0.08) typography 5 changed
~
display {"family":"Cahuenga","size":56} → {"family":"Inter Variable","size":96} ~
h1 {"family":"Cahuenga","size":40} → {"family":"Inter Variable","size":56} ~
h2 {"family":"Cahuenga","size":32} → {"family":"Inter Variable","size":36} ~
body {"family":"Spectral","size":19} → {"family":"Inter Variable","size":16} ~
label {"family":"Monaco","size":13} → {"family":"Fira Code Variable","size":12} radius 1 changed
~
button 6px → 8px spacing identical
No differences.