Color

#504b63

#504b63
hex#504b63
rgbrgb(80, 75, 99)
hslhsl(252, 14%, 34%)
oklchoklch(0.427 0.04 294.2)
Closest name: Freefall (#565266)Relative luminance 0.0764

Colors that go with #504b63

Steel Blue, Teal 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 →

#5e634b

#4b5263 · #5c4b63

#634f4b · #4b634f

Split-complementary

Open in tool →

#635c4b · #52634b

#634b52 · #5e634b · #4b635c

Contrast

#504b63 as textRatioAAAA largeAAAFix
Aaon white
8.31:1passpasspassPasses AAA — no fix needed.
Aaon black
2.53:1failfailfail
  • AA: use #787194 as the text (4.59:1)
  • AAA: use #9993ae as the text (7.14:1)
  • AA: or shift the background to #bfbfbf (4.52:1)
  • AAA: or shift the background to #ededed (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #504b63 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 #504b63
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 #504b63 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/504b63-a99cc4-dfb64e-281f2d-e9ecf1?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