Color

#56003f

#56003f
hex#56003f
rgbrgb(86, 0, 63)
hslhsl(316, 100%, 17%)
oklchoklch(0.303 0.13 343.2)
Closest name: Cloak and Dagger (#550055)Relative luminance 0.0234

Colors that go with #56003f

Crimson, Denim and Sea Green 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 →

#005717

#420057 · #570014

#405700 · #004057

Split-complementary

Open in tool →

#145700 · #005742

#574200 · #005717 · #001457

Contrast

#56003f as textRatioAAAA largeAAAFix
Aaon white
14.31:1passpasspassPasses AAA — no fix needed.
Aaon black
1.47:1failfailfail
  • AA: use #db00a1 as the text (4.53:1)
  • AAA: use #ff47ce as the text (7.04:1)
  • AA: or shift the background to #919191 (4.54:1)
  • AAA: or shift the background to #b8b8b8 (7.21:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #56003f 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

#56003f reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #56003f
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 #56003f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/56003f-c19fb4-79cb62-2d1f23-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