Color

#671ba1

#671ba1
hex#671ba1
rgbrgb(103, 27, 161)
hslhsl(274, 71%, 37%)
oklchoklch(0.422 0.196 304.4)
Closest name: Fuchsia Nebula (#7722aa)Relative luminance 0.0624

Colors that go with #671ba1

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 →

#55a11b

#241ba1 · #a11b98

#a1671b · #1ba167

Split-complementary

Open in tool →

#98a11b · #1ba124

#a1241b · #55a11b · #1b98a1

Contrast

#671ba1 as textRatioAAAA largeAAAFix
Aaon white
9.34:1passpasspassPasses AAA — no fix needed.
Aaon black
2.25:1failfailfail
  • AA: use #a04ce1 as the text (4.62:1)
  • AAA: use #ba7ce9 as the text (7.15:1)
  • AA: or shift the background to #b5b5b5 (4.56:1)
  • AAA: or shift the background to #e0e0e0 (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #671ba1 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

#671ba1 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #671ba1
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 #671ba1 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/671ba1-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