Southwest Airlines vs Substack
71 token-level differences between these two design systems.
Background
#f4f4f4 → #ffffff Text
#000000 → #363737 Brand
#ffbf27 → #ff6719 Border
#000000 → rgba(0, 0, 0, 0.10) Display font
Southwest Sans → Cahuenga Body size
16px → 19px colors 61 changed
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bg #f4f4f4 → #ffffff ~
surface #f4f4f4 → #ffffff ~
text #000000 → #363737 ~
text-muted #565656 → #878787 ~
text-soft #767676 → #666c70 ~
brand #ffbf27 → #ff6719 ~
brand-hover #f0b01c → #e85412 ~
on-brand #111b40 → #ffffff ~
border #000000 → rgba(0, 0, 0, 0.10) ~
border-soft #d4d4d4 → rgba(0, 0, 0, 0.06) ~
border-strong #000000 → rgba(0, 0, 0, 0.20) ~
success #1a7a3c → #0d8050 ~
warning #b25f00 → #d97706 ~
danger #c4123c → #dc2626 ~
info #304cb2 → #2563eb +
bg-elev #fafaf7 +
bg-cream #fbf9f4 +
bg-soft #f6f6f3 +
surface-warm #fafaf7 +
text-strong #1a1a1a +
text-faint #a8a8a8 +
text-link #363737 +
brand-deep #cc4a0e +
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) +
shadow-soft rgba(0, 0, 0, 0.06) +
shadow-medium rgba(0, 0, 0, 0.10) +
reading-rule rgba(0, 0, 0, 0.08) −
bg-alt #ffffff −
surface-white #ffffff −
surface-soft #ebebeb −
surface-navy #111b40 −
surface-blue #304cb2 −
surface-yellow-soft #fff6dd −
text-body #1a1a1a −
text-on-brand #111b40 −
text-on-navy #ffffff −
text-on-blue #ffffff −
brand-active #dca110 −
blue #304cb2 −
blue-hover #26409c −
blue-active #1d3380 −
navy #111b40 −
navy-2 #1a2a5e −
red-heart #d31245 −
link #304cb2 −
link-hover #26409c −
link-visited #5a3a9e −
border-focus #304cb2 −
divider #d4d4d4 −
scrim rgba(17,27,64,0.55) −
shadow-card rgba(17,27,64,0.08) −
shadow-elev rgba(17,27,64,0.16) −
shadow-deep rgba(17,27,64,0.24) −
success-soft #e6f4ec −
warning-soft #fff4e3 −
danger-soft #fdeef1 −
info-soft #eaeefb −
star-rating #ffbf27 typography 5 changed
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display {"family":"Southwest Sans","size":80} → {"family":"Cahuenga","size":56} ~
h1 {"family":"Southwest Sans","size":40} → {"family":"Cahuenga","size":40} ~
h2 {"family":"Southwest Sans","size":32} → {"family":"Cahuenga","size":32} ~
body {"family":"Southwest Sans","size":16} → {"family":"Spectral","size":19} ~
label {"family":"SFMono-Regular","size":13} → {"family":"Monaco","size":13} radius 1 changed
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button 8px → 6px spacing 4 changed
~
xs 0px → 4px ~
sm 4px → 8px ~
md 12px → 16px ~
xl 64px → 48px