Color

#731584

#731584
hex#731584
rgbrgb(115, 21, 132)
hslhsl(291, 73%, 30%)
oklchoklch(0.412 0.179 320.7)
Closest name: Ultraberry (#770088)Relative luminance 0.0585

Colors that go with #731584

Forest Green, Charcoal and Denim 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 →

#258415

#3c1584 · #84155d

#847415 · #158474

Split-complementary

Open in tool →

#5d8415 · #15843c

#843c15 · #258415 · #155d84

Contrast

#731584 as textRatioAAAA largeAAAFix
Aaon white
9.68:1passpasspassPasses AAA — no fix needed.
Aaon black
2.17:1failfailfail
  • AA: use #c122dd as the text (4.54:1)
  • AAA: use #d569e8 as the text (7.02:1)
  • AA: or shift the background to #b3b3b3 (4.62:1)
  • AAA: or shift the background to #dedede (7.2:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #731584 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

#731584 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #731584
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 #731584 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/731584-bf9fc1-a4cb62-2d1f29-ece9f1?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