Color

#503f47

#503f47
hex#503f47
rgbrgb(80, 63, 71)
hslhsl(332, 12%, 28%)
oklchoklch(0.389 0.027 348.5)
Closest name: Black Magic (#4f4554)Relative luminance 0.0572

Colors that go with #503f47

Blue, Blush Pink 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.

Real palettes that use #503f47

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3f5048

#503f4f · #503f3f

#47503f · #3f4750

Split-complementary

Open in tool →

#3f503f · #3f4f50

#4f503f · #3f5048 · #3f3f50

Contrast

#503f47 as textRatioAAAA largeAAAFix
Aaon white
9.8:1passpasspassPasses AAA — no fix needed.
Aaon black
2.14:1failfailfail
  • AA: use #8c6e7c as the text (4.64:1)
  • AAA: use #a7909b as the text (7.11:1)
  • AA: or shift the background to #b0b0b0 (4.52:1)
  • AAA: or shift the background to #dbdbdb (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 #503f47 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

#503f47 reads as warm, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #503f47
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 #503f47 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/503f47-c49caa-62cb67-2d1f20-f1e9f1?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