Color

#436d7a

#436d7a
hex#436d7a
rgbrgb(67, 109, 122)
hslhsl(194, 29%, 37%)
oklchoklch(0.509 0.051 219.6)
Closest name: Calypso (#3d7188)Relative luminance 0.1354

Colors that go with #436d7a

Charcoal, Sienna and Amber 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 →

#7a5043

#437a6b · #43527a

#7a436d · #6d7a43

Split-complementary

Open in tool →

#7a4352 · #7a6b43

#6b437a · #7a5043 · #527a43

Contrast

#436d7a as textRatioAAAA largeAAAFix
Aaon white
5.66:1passpassfail
  • AAA: use #3a5e69 as the text (7.04:1)
Aaon black
3.71:1failpassfail
  • AA: use #4c7c8a as the text (4.56:1)
  • AAA: use #6b9eae as the text (7.13:1)
  • AA: or shift the background to #e6e6e6 (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #436d7a as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

mcpConnect your agent — build around #436d7a
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 #436d7a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/436d7a-9cb6c4-df4e72-1f242d-e9f1ef?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