Color

#673d85

#673d85
hex#673d85
rgbrgb(103, 61, 133)
hslhsl(275, 37%, 38%)
oklchoklch(0.443 0.121 309.2)
Closest name: Lords of the Night (#664488)Relative luminance 0.0791

Tints & shades

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

Harmonies

Complementary

Open in tool →

#5b853d

#433d85 · #853d7f

#85673d · #3d8567

Split-complementary

Open in tool →

#7f853d · #3d8543

#85433d · #5b853d · #3d7f85

Contrast

#673d85 as textRatioAAAA largeAAAFix
Aaon white
8.13:1passpasspassPasses AAA — no fix needed.
Aaon black
2.58:1failfailfail
  • AA: use #9362b7 as the text (4.67:1)
  • AAA: use #ae88c8 as the text (7.16:1)
  • AA: or shift the background to #c2c2c2 (4.56:1)
  • AAA: or shift the background to #f0f0f0 (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #673d85 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

#673d85 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #673d85
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 #673d85 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/673d85-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