Color

#671f9e

#671f9e
hex#671f9e
rgbrgb(103, 31, 158)
hslhsl(274, 67%, 37%)
oklchoklch(0.423 0.19 305)
Closest name: rebeccapurple (#663399)Relative luminance 0.0633

Colors that go with #671f9e

Olive Green, Charcoal 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 →

#569e1f

#281f9e · #9e1f95

#9e671f · #1f9e67

Split-complementary

Open in tool →

#959e1f · #1f9e28

#9e281f · #569e1f · #1f959e

Contrast

#671f9e as textRatioAAAA largeAAAFix
Aaon white
9.27:1passpasspassPasses AAA — no fix needed.
Aaon black
2.27:1failfailfail
  • AA: use #9d4cdc as the text (4.5:1)
  • AAA: use #b97fe6 as the text (7.24:1)
  • AA: or shift the background to #b5b5b5 (4.52:1)
  • AAA: or shift the background to #e0e0e0 (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 #671f9e 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

#671f9e reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #671f9e
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 #671f9e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/671f9e-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