Color

#4d557a

#4d557a
hex#4d557a
rgbrgb(77, 85, 122)
hslhsl(229, 23%, 39%)
oklchoklch(0.458 0.061 274.4)
Closest name: Deep Indigo (#4c567a)Relative luminance 0.0948

Colors that go with #4d557a

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 #4d557a

Tints & shades

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

Harmonies

Complementary

Open in tool →

#7a724d

#4d6c7a · #5b4d7a

#7a4d55 · #557a4d

Split-complementary

Open in tool →

#7a5b4d · #6c7a4d

#7a4d6c · #7a724d · #4d7a5b

Contrast

#4d557a as textRatioAAAA largeAAAFix
Aaon white
7.25:1passpasspassPasses AAA — no fix needed.
Aaon black
2.9:1failfailfail
  • AA: use #6873a1 as the text (4.56:1)
  • AAA: use #8e96b8 as the text (7.2:1)
  • AA: or shift the background to #cccccc (4.52:1)
  • AAA: or shift the background to #fcfcfc (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4d557a as the background.

Brands using this color

mcpConnect your agent — build around #4d557a
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 #4d557a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4d557a-9c9fc4-df7e4e-231f2d-e9eef1?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