Color

#404cba

#404cba
hex#404cba
rgbrgb(64, 76, 186)
hslhsl(234, 49%, 49%)
oklchoklch(0.473 0.172 273.2)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.098

Colors that go with #404cba

Charcoal, Sea Green and Steel 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 →

#baae40

#4089ba · #7140ba

#ba404c · #4cba40

Split-complementary

Open in tool →

#ba7140 · #89ba40

#ba4089 · #baae40 · #40ba71

Contrast

#404cba as textRatioAAAA largeAAAFix
Aaon white
7.09:1passpasspassPasses AAA — no fix needed.
Aaon black
2.96:1failfailfail
  • AA: use #636dca as the text (4.57:1)
  • AAA: use #8991d7 as the text (7.1:1)
  • AA: or shift the background to #cfcfcf (4.55:1)
  • AAA: or shift the background to #ffffff (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #404cba 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

#404cba reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #404cba
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 #404cba and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/404cba-9d9cc4-df8a4e-241f2d-e9eef1?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