Color

#673b7d

#673b7d
hex#673b7d
rgbrgb(103, 59, 125)
hslhsl(280, 36%, 36%)
oklchoklch(0.435 0.115 313.3)
Closest name: Eminence (#6e3974)Relative luminance 0.0749

Colors that go with #673b7d

Charcoal, Midnight Blue and Royal Blue 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 →

#517d3b

#463b7d · #7d3b72

#7d673b · #3b7d67

Split-complementary

Open in tool →

#727d3b · #3b7d46

#7d463b · #517d3b · #3b727d

Contrast

#673b7d as textRatioAAAA largeAAAFix
Aaon white
8.41:1passpasspassPasses AAA — no fix needed.
Aaon black
2.5:1failfailfail
  • AA: use #985fb4 as the text (4.63:1)
  • AAA: use #b086c6 as the text (7.07:1)
  • AA: or shift the background to #bfbfbf (4.57:1)
  • AAA: or shift the background to #ebebeb (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #673b7d 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

#673b7d reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #673b7d
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 #673b7d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/673b7d-b99fc1-b8cb62-2d1f2c-ebe9f1?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