Color

#402154

#402154
hex#402154
rgbrgb(64, 33, 84)
hslhsl(276, 44%, 23%)
oklchoklch(0.315 0.093 310.2)
Closest name: Acai (#48295b)Relative luminance 0.0282

Colors that go with #402154

Charcoal, Dark Olive Green and Sea Green 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 →

#355421

#262154 · #54214f

#544021 · #215440

Split-complementary

Open in tool →

#4f5421 · #215426

#542621 · #355421 · #214f54

Contrast

#402154 as textRatioAAAA largeAAAFix
Aaon white
13.43:1passpasspassPasses AAA — no fix needed.
Aaon black
1.56:1failfailfail
  • AA: use #965abf as the text (4.51:1)
  • AAA: use #b286d0 as the text (7.21:1)
  • AA: or shift the background to #969696 (4.54:1)
  • AAA: or shift the background to #bdbdbd (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #402154 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

#402154 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #402154
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 #402154 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/402154-b99cc4-bfcb62-2d1f2d-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