Color

#4b7481

#4b7481
hex#4b7481
rgbrgb(75, 116, 129)
hslhsl(194, 26%, 40%)
oklchoklch(0.534 0.05 219.9)
Closest name: Calypso (#3d7188)Relative luminance 0.1557

Colors that go with #4b7481

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.

Real palettes that use #4b7481

Tints & shades

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

Harmonies

Complementary

Open in tool →

#81584b

#4b8172 · #4b5a81

#814b74 · #74814b

Split-complementary

Open in tool →

#814b5a · #81724b

#724b81 · #81584b · #5a814b

Contrast

#4b7481 as textRatioAAAA largeAAAFix
Aaon white
5.1:1passpassfail
  • AAA: use #3c5d67 as the text (7.11:1)
Aaon black
4.11:1failpassfail
  • AA: use #517d8a as the text (4.65:1)
  • AAA: use #729eac as the text (7.2:1)
  • AA: or shift the background to #f2f2f2 (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4b7481 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 #4b7481
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 #4b7481 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4b7481-9cb6c4-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