Color

#673d7f

#673d7f
hex#673d7f
rgbrgb(103, 61, 127)
hslhsl(278, 35%, 37%)
oklchoklch(0.439 0.113 312)
Closest name: Lords of the Night (#664488)Relative luminance 0.0775

Tints & shades

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

Harmonies

Complementary

Open in tool →

#567f3d

#463d7f · #7f3d77

#7f673d · #3d7f67

Split-complementary

Open in tool →

#777f3d · #3d7f46

#7f463d · #567f3d · #3d777f

Contrast

#673d7f as textRatioAAAA largeAAAFix
Aaon white
8.23:1passpasspassPasses AAA — no fix needed.
Aaon black
2.55:1failfailfail
  • AA: use #9561b3 as the text (4.64:1)
  • AAA: use #ae87c5 as the text (7.07:1)
  • AA: or shift the background to #c2c2c2 (4.62:1)
  • AAA: or shift the background to #ededed (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #673d7f 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

#673d7f reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #673d7f
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 #673d7f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/673d7f-ba9cc4-bbcb62-2d1f2c-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