Color

#451c4f

#451c4f
hex#451c4f
rgbrgb(69, 28, 79)
hslhsl(288, 48%, 21%)
oklchoklch(0.311 0.098 319.4)
Closest name: Velvet Cosmos (#441144)Relative luminance 0.0266

Colors that go with #451c4f

Charcoal, Sea Green and Amber 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 →

#264f1c

#2b1c4f · #4f1c40

#4f451c · #1c4f45

Split-complementary

Open in tool →

#404f1c · #1c4f2b

#4f2b1c · #264f1c · #1c404f

Contrast

#451c4f as textRatioAAAA largeAAAFix
Aaon white
13.71:1passpasspassPasses AAA — no fix needed.
Aaon black
1.53:1failfailfail
  • AA: use #aa4ec1 as the text (4.57:1)
  • AAA: use #c17fd2 as the text (7.23:1)
  • AA: or shift the background to #949494 (4.52:1)
  • AAA: or shift the background to #bababa (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 #451c4f 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

#451c4f reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #451c4f
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 #451c4f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/451c4f-be9fc1-aacb62-2d1f2a-ece9f1?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