Brand color

American Express Primary

#2e77bc
hex#2e77bc
rgbrgb(46, 119, 188)
hslhsl(209, 61%, 46%)
oklchoklch(0.558 0.129 250.3)
From American Express brand colorsRelative luminance 0.1741

American Express Primary on this page is the real value, not a screenshot: exact hex, RGB, HSL and OKLCH, ten tints and ten shades, classic harmonies, and WCAG contrast with fixes — plus the 7 public brands that use it and the palettes it appears in.

Colors that go with American Express Primary

Charcoal, Crimson and Sienna lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#bd732e

#2ebdba · #2e30bd

#bd2e78 · #78bd2e

Split-complementary

Open in tool →

#bd2e30 · #bdba2e

#ba2ebd · #bd732e · #30bd2e

Contrast

American Express Primary as textRatioAAAA largeAAAFix
Aaon white
4.69:1passpassfail
  • AAA: use #235b90 as the text (7.07:1)
Aaon black
4.48:1failpassfail
  • AA: use #2f7ac1 as the text (4.67:1)
  • AAA: use #5b9bd7 as the text (7.11:1)
  • AA: or shift the background to #fcfcfc (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with American Express Primary as the background.

Brands using this color

Fonts for this mood

American Express Primary reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around American Express Primary
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

›analyze #2e77bc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2e77bc-9cacc4-df4e4e-1f212d-e9f1f1?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md