Color

#57808e

#57808e
hex#57808e
rgbrgb(87, 128, 142)
hslhsl(195, 24%, 45%)
oklchoklch(0.575 0.05 221.3)
Closest name: Citadel (#6a7f8b)Relative luminance 0.1942

Colors that go with #57808e

Charcoal, Copper and Sienna 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 #57808e

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8e6557

#578e81 · #57658e

#8e5781 · #818e57

Split-complementary

Open in tool →

#8e5765 · #8e8157

#81578e · #8e6557 · #658e57

Contrast

#57808e as textRatioAAAA largeAAAFix
Aaon white
4.3:1failpassfail
  • AA: use #537b88 as the text (4.61:1)
  • AAA: use #3e5b65 as the text (7.27:1)
  • AA: or shift the background to #0d0d0d (4.52:1)
Aaon black
4.88:1passpassfail
  • AAA: use #749caa as the text (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #57808e 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 #57808e
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 #57808e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/57808e-9cb5c4-df4e70-1f242d-e9f1ef?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