Color

#613681

#613681
hex#613681
rgbrgb(97, 54, 129)
hslhsl(274, 41%, 36%)
oklchoklch(0.422 0.126 308.4)
Closest name: Galactic Grapevine (#6b327b)Relative luminance 0.0676

Colors that go with #613681

Charcoal, Midnight Blue and Dark Olive 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 →

#578136

#3b3681 · #81367c

#816136 · #368161

Split-complementary

Open in tool →

#7c8136 · #36813b

#813b36 · #578136 · #367c81

Contrast

#613681 as textRatioAAAA largeAAAFix
Aaon white
8.93:1passpasspassPasses AAA — no fix needed.
Aaon black
2.35:1failfailfail
  • AA: use #935dbb as the text (4.52:1)
  • AAA: use #ad85cc as the text (7:1)
  • AA: or shift the background to #bababa (4.6:1)
  • AAA: or shift the background to #e6e6e6 (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #613681 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

#613681 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #613681
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 #613681 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/613681-b79cc4-c2cb62-2d1f2d-eae9f1?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