Color

#451f56

#451f56
hex#451f56
rgbrgb(69, 31, 86)
hslhsl(281, 47%, 23%)
oklchoklch(0.32 0.101 314)
Closest name: Acai (#48295b)Relative luminance 0.0292

Colors that go with #451f56

Charcoal, Sea Green and Teal 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 →

#31561f

#291f56 · #561f4c

#56451f · #1f5645

Split-complementary

Open in tool →

#4c561f · #1f5629

#56291f · #31561f · #1f4c56

Contrast

#451f56 as textRatioAAAA largeAAAFix
Aaon white
13.26:1passpasspassPasses AAA — no fix needed.
Aaon black
1.58:1failfailfail
  • AA: use #a056c2 as the text (4.6:1)
  • AAA: use #b780d1 as the text (7.02:1)
  • AA: or shift the background to #999999 (4.66:1)
  • AAA: or shift the background to #bdbdbd (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #451f56 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

#451f56 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #451f56
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 #451f56 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/451f56-ba9fc1-b6cb62-2d1f2c-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