Color

#4b5477

#4b5477
hex#4b5477
rgbrgb(75, 84, 119)
hslhsl(228, 23%, 38%)
oklchoklch(0.453 0.059 272.8)
Closest name: Deep Indigo (#4c567a)Relative luminance 0.0917

Colors that go with #4b5477

Sea Green, Steel Blue and Blue 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 #4b5477

Tints & shades

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

Harmonies

Complementary

Open in tool →

#776e4b

#4b6a77 · #584b77

#774b54 · #54774b

Split-complementary

Open in tool →

#77584b · #6a774b

#774b6a · #776e4b · #4b7758

Contrast

#4b5477 as textRatioAAAA largeAAAFix
Aaon white
7.41:1passpasspassPasses AAA — no fix needed.
Aaon black
2.83:1failfailfail
  • AA: use #6874a1 as the text (4.6:1)
  • AAA: use #8b94b6 as the text (7.01:1)
  • AA: or shift the background to #cccccc (4.61:1)
  • AAA: or shift the background to #fafafa (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4b5477 as the background.

Brands using this color

mcpConnect your agent — build around #4b5477
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 #4b5477 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4b5477-9c9fc4-df7c4e-231f2d-e9eff1?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