Color

#623f8d

#623f8d
hex#623f8d
rgbrgb(98, 63, 141)
hslhsl(267, 38%, 40%)
oklchoklch(0.446 0.126 302.3)
Closest name: Lords of the Night (#664488)Relative luminance 0.0807

Colors that go with #623f8d

Charcoal, Blue and Crimson 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 →

#6a8d3f

#3f438d · #893f8d

#8d623f · #3f8d62

Split-complementary

Open in tool →

#8d893f · #438d3f

#8d3f43 · #6a8d3f · #3f8d89

Contrast

#623f8d as textRatioAAAA largeAAAFix
Aaon white
8.03:1passpasspassPasses AAA — no fix needed.
Aaon black
2.61:1failfailfail
  • AA: use #8b64b9 as the text (4.62:1)
  • AAA: use #a88bcb as the text (7.22:1)
  • AA: or shift the background to #c2c2c2 (4.51:1)
  • AAA: or shift the background to #f0f0f0 (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #623f8d 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

#623f8d reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #623f8d
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 #623f8d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/623f8d-b39cc4-dfda4e-2c1f2d-e9eaf1?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