Color

#431d62

#431d62
hex#431d62
rgbrgb(67, 29, 98)
hslhsl(273, 54%, 25%)
oklchoklch(0.323 0.118 306.1)
Closest name: Fading Horizon (#442266)Relative luminance 0.0295

Colors that go with #431d62

Blue, Cadet Blue and Charcoal 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 →

#3c621d

#211d62 · #621d5f

#62431d · #1d6243

Split-complementary

Open in tool →

#5f621d · #1d6221

#62211d · #3c621d · #1d5f62

Contrast

#431d62 as textRatioAAAA largeAAAFix
Aaon white
13.2:1passpasspassPasses AAA — no fix needed.
Aaon black
1.59:1failfailfail
  • AA: use #9756cd as the text (4.53:1)
  • AAA: use #b281d9 as the text (7.04:1)
  • AA: or shift the background to #999999 (4.63:1)
  • AAA: or shift the background to #bdbdbd (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 #431d62 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

#431d62 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #431d62
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 #431d62 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/431d62-b79cc4-c4cb62-2d1f2d-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