Color

#4f576d

#4f576d
hex#4f576d
rgbrgb(79, 87, 109)
hslhsl(224, 16%, 37%)
oklchoklch(0.458 0.037 269.3)
Closest name: Black Orchid (#525463)Relative luminance 0.0958

Colors that go with #4f576d

Steel Blue, Blue and Cadet 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#6d654f

#4f666d · #564f6d

#6d4f57 · #576d4f

Split-complementary

Open in tool →

#6d564f · #666d4f

#6d4f66 · #6d654f · #4f6d56

Contrast

#4f576d as textRatioAAAA largeAAAFix
Aaon white
7.2:1passpasspassPasses AAA — no fix needed.
Aaon black
2.92:1failfailfail
  • AA: use #697491 as the text (4.51:1)
  • AAA: use #8f97ae as the text (7.21:1)
  • AA: or shift the background to #cfcfcf (4.62:1)
  • AAA: or shift the background to #fcfcfc (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4f576d as the background.

Brands using this color

mcpConnect your agent — build around #4f576d
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 #4f576d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4f576d-9ca2c4-df724e-221f2d-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