Color

#503f4c

#503f4c
hex#503f4c
rgbrgb(80, 63, 76)
hslhsl(314, 12%, 28%)
oklchoklch(0.391 0.031 334.6)
Closest name: Black Magic (#4f4554)Relative luminance 0.0578

Colors that go with #503f4c

Sea Green, 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.

Real palettes that use #503f4c

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3f5043

#4b3f50 · #503f43

#4c503f · #3f4c50

Split-complementary

Open in tool →

#43503f · #3f504b

#504b3f · #3f5043 · #3f4350

Contrast

#503f4c as textRatioAAAA largeAAAFix
Aaon white
9.74:1passpasspassPasses AAA — no fix needed.
Aaon black
2.16:1failfailfail
  • AA: use #896c82 as the text (4.53:1)
  • AAA: use #a790a2 as the text (7.15:1)
  • AA: or shift the background to #b3b3b3 (4.64:1)
  • AAA: or shift the background to #dbdbdb (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #503f4c as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#503f4c reads as warm, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #503f4c
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 #503f4c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/503f4c-c19fb5-7ccb62-2d1f24-efe9f1?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