Color

#404091

#404091
hex#404091
rgbrgb(64, 64, 145)
hslhsl(240, 39%, 41%)
oklchoklch(0.418 0.13 279.2)
Closest name: Blueberry (#464196)Relative luminance 0.068

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#919140

#406991 · #694091

#914040 · #409140

Split-complementary

Open in tool →

#916940 · #699140

#914069 · #919140 · #409169

Contrast

#404091 as textRatioAAAA largeAAAFix
Aaon white
8.9:1passpasspassPasses AAA — no fix needed.
Aaon black
2.36:1failfailfail
  • AA: use #6e6ebf as the text (4.65:1)
  • AAA: use #9191cf as the text (7.16:1)
  • AA: or shift the background to #bababa (4.58:1)
  • AAA: or shift the background to #e6e6e6 (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #404091 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

#404091 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #404091
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #404091 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/404091-a19cc4-df994e-251f2d-e9edf1?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