Color

#401a4c

#401a4c
hex#401a4c
rgbrgb(64, 26, 76)
hslhsl(286, 49%, 20%)
oklchoklch(0.298 0.096 317.3)
Closest name: Velvet Cosmos (#441144)Relative luminance 0.0235

Colors that go with #401a4c

Charcoal, Sea Green and Slate Blue 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 →

#264c1a

#271a4c · #4c1a3f

#4c401a · #1a4c40

Split-complementary

Open in tool →

#3f4c1a · #1a4c27

#4c271a · #264c1a · #1a3f4c

Contrast

#401a4c as textRatioAAAA largeAAAFix
Aaon white
14.28:1passpasspassPasses AAA — no fix needed.
Aaon black
1.47:1failfailfail
  • AA: use #a850c3 as the text (4.6:1)
  • AAA: use #bf7ed3 as the text (7.14:1)
  • AA: or shift the background to #919191 (4.53:1)
  • AAA: or shift the background to #b8b8b8 (7.2:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #401a4c 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

#401a4c reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #401a4c
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 #401a4c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/401a4c-bd9fc1-adcb62-2d1f2a-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