Color

#673181

#673181
hex#673181
rgbrgb(103, 49, 129)
hslhsl(281, 45%, 35%)
oklchoklch(0.422 0.136 313.2)
Closest name: Galactic Grapevine (#6b327b)Relative luminance 0.0667

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#4b8131

#403181 · #813173

#816831 · #318168

Split-complementary

Open in tool →

#738131 · #318140

#814031 · #4b8131 · #317381

Contrast

#673181 as textRatioAAAA largeAAAFix
Aaon white
9:1passpasspassPasses AAA — no fix needed.
Aaon black
2.33:1failfailfail
  • AA: use #9f59c0 as the text (4.66:1)
  • AAA: use #b781cf as the text (7.05:1)
  • AA: or shift the background to #b8b8b8 (4.54:1)
  • AAA: or shift the background to #e3e3e3 (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #673181 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

#673181 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #673181
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #673181 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/673181-ba9fc1-b6cb62-2d1f2c-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