Mercury vs BBC News
77 token-level differences between these two design systems.
Background
#ffffff → #ffffff Text
#101011 → #202224 Brand
#5f6ad2 → #bb1919 Border
#0000000f → #dcdcdc Display font
Tiempos Headline → BBC Reith Sans Body size
16px → 18px colors 70 changed
~
surface #f4f4f2 → #ffffff ~
surface-soft #f8f8f6 → #f6f6f6 ~
text #101011 → #202224 ~
text-muted #5b5d5c → #5a5d61 ~
text-soft #8a8c8b → #7a7d81 ~
text-faint #b5b6b5 → #a3a6aa ~
brand #5f6ad2 → #bb1919 ~
brand-hover #4a55b8 → #a31515 ~
brand-deep #3a4598 → #5a0d0d ~
brand-soft #e8eaff → #fadcdc ~
border #0000000f → #dcdcdc ~
border-soft #0000000a → #f0f0f0 ~
border-strong #0000001f → #999999 ~
link #5f6ad2 → #bb1919 ~
link-hover #4a55b8 → #a31515 ~
success #5e9678 → #2ea44f ~
warning #c08a3a → #cc7a00 ~
danger #c4564f → #bb1919 +
bg-section #ffffff +
bg-dark #202224 +
bg-darkest #0d0d0d +
surface-strong #e8e8e8 +
surface-quote #fbe6e6 +
surface-red-tint #fce8e8 +
text-on-red #ffffff +
text-on-dark #ffffff +
brand-active #8b1212 +
brand-block #bb1919 +
link-visited #5a5d61 +
on-dark #ffffff +
border-rule #202224 +
border-red #bb1919 +
shadow-card rgba(0,0,0,0.06) +
shadow-elev rgba(0,0,0,0.1) +
shadow-modal rgba(0,0,0,0.3) +
scrim rgba(0,0,0,0.6) +
success-soft #dff0e7 +
warning-soft #fde9cc +
danger-soft #fadcdc +
info #0066b8 +
info-soft #cfe7f5 +
breaking-red #bb1919 +
live-red #bb1919 +
bbc-iplayer #ffd000 +
bbc-sounds #ff4f00 +
bbc-sport #ffd000 −
bg-soft #fafafa −
bg-mint #d3e8e0 −
bg-mint-soft #eef6f1 −
bg-ink #101011 −
bg-ink-soft #1a1a1c −
surface-warm #f0f0ed −
surface-on-ink #1a1a1c −
surface-on-ink-elev #26262a −
text-on-ink #fafafa −
text-on-ink-muted #9a9a9a −
text-on-mint #101011 −
brand-tint #f3f4ff −
accent #d3e8e0 −
accent-strong #9bc5b3 −
accent-soft #eef6f1 −
accent-deep #76a692 −
border-on-ink #ffffff14 −
on-mint #101011 −
success-bg #e8f1ec −
warning-bg #f7eed8 −
danger-bg #f7e3e0 −
shadow-soft rgba(0,0,0,0.03) −
shadow-standard rgba(0,0,0,0.06) −
shadow-elevated rgba(0,0,0,0.10) typography 5 changed
~
display {"family":"Tiempos Headline","size":96} → {"family":"BBC Reith Sans","size":72} ~
h1 {"family":"Tiempos Headline","size":72} → {"family":"BBC Reith Sans","size":28} ~
h2 {"family":"Tiempos Headline","size":48} → {"family":"BBC Reith Sans","size":22} ~
body {"family":"GT America","size":16} → {"family":"BBC Reith Sans","size":18} ~
label {"family":"GT America Mono","size":12} → {"family":"BBC Reith Mono","size":11} radius 2 changed
~
button 6px → 4px ~
card 10px → 8px spacing identical
No differences.