Color

#4f556d

#4f556d
hex#4f556d
rgbrgb(79, 85, 109)
hslhsl(228, 16%, 37%)
oklchoklch(0.454 0.04 273.8)
Closest name: Freefall (#565266)Relative luminance 0.0926

Colors that go with #4f556d

Steel Blue, Blue and Blush Pink 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 #4f556d

Tints & shades

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

Harmonies

Complementary

Open in tool →

#6d674f

#4f646d · #584f6d

#6d4f55 · #556d4f

Split-complementary

Open in tool →

#6d584f · #646d4f

#6d4f64 · #6d674f · #4f6d58

Contrast

#4f556d as textRatioAAAA largeAAAFix
Aaon white
7.36:1passpasspassPasses AAA — no fix needed.
Aaon black
2.85:1failfailfail
  • AA: use #6b7394 as the text (4.51:1)
  • AAA: use #8f95ae as the text (7.08:1)
  • AA: or shift the background to #cccccc (4.58:1)
  • AAA: or shift the background to #fafafa (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4f556d as the background.

Brands using this color

mcpConnect your agent — build around #4f556d
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 #4f556d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4f556d-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