Color

#673d94

#673d94
hex#673d94
rgbrgb(103, 61, 148)
hslhsl(269, 42%, 41%)
oklchoklch(0.453 0.14 303.6)
Closest name: rebeccapurple (#663399)Relative luminance 0.0836

Tints & shades

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

Harmonies

Complementary

Open in tool →

#6a943d

#3d3e94 · #933d94

#94673d · #3d9467

Split-complementary

Open in tool →

#94933d · #3e943d

#943d3e · #6a943d · #3d9493

Contrast

#673d94 as textRatioAAAA largeAAAFix
Aaon white
7.86:1passpasspassPasses AAA — no fix needed.
Aaon black
2.67:1failfailfail
  • AA: use #8d60be as the text (4.55:1)
  • AAA: use #aa88ce as the text (7.12:1)
  • AA: or shift the background to #c4c4c4 (4.51:1)
  • AAA: or shift the background to #f2f2f2 (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #673d94 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

#673d94 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #673d94
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 #673d94 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/673d94-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