Color

#581d53

#581d53
hex#581d53
rgbrgb(88, 29, 83)
hslhsl(305, 50%, 23%)
oklchoklch(0.344 0.112 331.2)
Closest name: Cosmic Explorer (#551155)Relative luminance 0.0358

Colors that go with #581d53

Sea Green, Blue and Crimson 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 →

#1d5822

#401d58 · #581d36

#53581d · #1d5358

Split-complementary

Open in tool →

#36581d · #1d5840

#58401d · #1d5822 · #1d3658

Contrast

#581d53 as textRatioAAAA largeAAAFix
Aaon white
12.24:1passpasspassPasses AAA — no fix needed.
Aaon black
1.72:1failfailfail
  • AA: use #bf40b5 as the text (4.62:1)
  • AAA: use #d175c9 as the text (7.1:1)
  • AA: or shift the background to #9e9e9e (4.57:1)
  • AAA: or shift the background to #c4c4c4 (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #581d53 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

#581d53 reads as warm, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #581d53
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 #581d53 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/581d53-c19fba-8ccb62-2d1f26-eee9f1?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