Color

#673190

#673190
hex#673190
rgbrgb(103, 49, 144)
hslhsl(274, 49%, 38%)
oklchoklch(0.432 0.153 307.3)
Closest name: rebeccapurple (#663399)Relative luminance 0.0709

Colors that go with #673190

Crimson, Tomato and 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 →

#5b9031

#383190 · #90318a

#906731 · #319067

Split-complementary

Open in tool →

#8a9031 · #319038

#903831 · #5b9031 · #318a90

Contrast

#673190 as textRatioAAAA largeAAAFix
Aaon white
8.68:1passpasspassPasses AAA — no fix needed.
Aaon black
2.42:1failfailfail
  • AA: use #9658c6 as the text (4.51:1)
  • AAA: use #b385d5 as the text (7.23:1)
  • AA: or shift the background to #bdbdbd (4.62:1)
  • AAA: or shift the background to #e8e8e8 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #673190 as the background.

Brands using this color

Fonts for this mood

#673190 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #673190
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 #673190 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/673190-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