Color

#673f83

#673f83
hex#673f83
rgbrgb(103, 63, 131)
hslhsl(275, 35%, 38%)
oklchoklch(0.445 0.115 309.6)
Closest name: Lords of the Night (#664488)Relative luminance 0.0808

Colors that go with #673f83

Taupe, Dark Olive Green and Teal 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 →

#5b833f

#453f83 · #833f7d

#83673f · #3f8367

Split-complementary

Open in tool →

#7d833f · #3f8345

#83453f · #5b833f · #3f7d83

Contrast

#673f83 as textRatioAAAA largeAAAFix
Aaon white
8.03:1passpasspassPasses AAA — no fix needed.
Aaon black
2.62:1failfailfail
  • AA: use #9161b3 as the text (4.56:1)
  • AAA: use #ab87c5 as the text (7:1)
  • AA: or shift the background to #c2c2c2 (4.51:1)
  • AAA: or shift the background to #f0f0f0 (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 #673f83 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

#673f83 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #673f83
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 #673f83 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/673f83-b89cc4-c0cb62-2d1f2d-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