Color

#402b73

#402b73
hex#402b73
rgbrgb(64, 43, 115)
hslhsl(258, 46%, 31%)
oklchoklch(0.355 0.118 292.8)
Closest name: Her Highness (#432e6f)Relative luminance 0.0406

Colors that go with #402b73

Charcoal, Royal Blue and 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 →

#5e732b

#2b3973 · #652b73

#73412b · #2b7341

Split-complementary

Open in tool →

#73652b · #39732b

#732b39 · #5e732b · #2b7365

Contrast

#402b73 as textRatioAAAA largeAAAFix
Aaon white
11.6:1passpasspassPasses AAA — no fix needed.
Aaon black
1.81:1failfailfail
  • AA: use #8063c5 as the text (4.51:1)
  • AAA: use #a18cd4 as the text (7.22:1)
  • AA: or shift the background to #a3a3a3 (4.6:1)
  • AAA: or shift the background to #c9c9c9 (7:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #402b73 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

#402b73 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #402b73
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 #402b73 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/402b73-ad9cc4-dfc44e-291f2d-e9ebf1?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