Color

#436f84

#436f84
hex#436f84
rgbrgb(67, 111, 132)
hslhsl(199, 33%, 39%)
oklchoklch(0.518 0.059 230)
Closest name: Calypso (#3d7188)Relative luminance 0.1423

Tints & shades

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

Harmonies

Complementary

Open in tool →

#845743

#438478 · #434f84

#84436f · #6f8443

Split-complementary

Open in tool →

#84434f · #847843

#784384 · #845743 · #4f8443

Contrast

#436f84 as textRatioAAAA largeAAAFix
Aaon white
5.46:1passpassfail
  • AAA: use #375b6d as the text (7.29:1)
Aaon black
3.85:1failpassfail
  • AA: use #497b92 as the text (4.53:1)
  • AAA: use #6a9cb4 as the text (7.03:1)
  • AA: or shift the background to #ebebeb (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #436f84 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 #436f84
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

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

analyze #436f84 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/436f84-9cb3c4-df4e66-1f232d-e9f1f0?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