Color

#57495b

#57495b
hex#57495b
rgbrgb(87, 73, 91)
hslhsl(287, 11%, 32%)
oklchoklch(0.426 0.034 318.7)
Closest name: Black Magic (#4f4554)Relative luminance 0.0755

Colors that go with #57495b

Teal, Sea Green 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#4d5b49

#4e495b · #5b4955

#5b5749 · #495b57

Split-complementary

Open in tool →

#555b49 · #495b4e

#5b4e49 · #4d5b49 · #49555b

Contrast

#57495b as textRatioAAAA largeAAAFix
Aaon white
8.37:1passpasspassPasses AAA — no fix needed.
Aaon black
2.51:1failfailfail
  • AA: use #856f8b as the text (4.64:1)
  • AAA: use #a291a6 as the text (7.14:1)
  • AA: or shift the background to #bfbfbf (4.55:1)
  • AAA: or shift the background to #ebebeb (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 #57495b 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 #57495b
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 #57495b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/57495b-bd9fc1-abcb62-2d1f2a-ece9f1?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