Color

#674091

#674091
hex#674091
rgbrgb(103, 64, 145)
hslhsl(269, 39%, 41%)
oklchoklch(0.456 0.131 303.9)
Closest name: Lords of the Night (#664488)Relative luminance 0.0859

Colors that go with #674091

Charcoal, Crimson and Denim 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 →

#6a9140

#404191 · #904091

#916740 · #409167

Split-complementary

Open in tool →

#919040 · #419140

#914041 · #6a9140 · #409190

Contrast

#674091 as textRatioAAAA largeAAAFix
Aaon white
7.72:1passpasspassPasses AAA — no fix needed.
Aaon black
2.72:1failfailfail
  • AA: use #8d63bb as the text (4.63:1)
  • AAA: use #aa8acc as the text (7.22:1)
  • AA: or shift the background to #c7c7c7 (4.57:1)
  • AAA: or shift the background to #f5f5f5 (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 #674091 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

#674091 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #674091
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 #674091 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/674091-b49cc4-cbcb62-2c1f2d-e9e9f1?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