Color

#401b64

#401b64
hex#401b64
rgbrgb(64, 27, 100)
hslhsl(270, 57%, 25%)
oklchoklch(0.318 0.123 303.2)
Closest name: Fading Horizon (#442266)Relative luminance 0.0279

Tints & shades

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

Harmonies

Complementary

Open in tool →

#40641b

#1b1b64 · #641b64

#64401b · #1b6440

Split-complementary

Open in tool →

#64641b · #1b641b

#641b1b · #40641b · #1b6464

Contrast

#401b64 as textRatioAAAA largeAAAFix
Aaon white
13.47:1passpasspassPasses AAA — no fix needed.
Aaon black
1.56:1failfailfail
  • AA: use #9457d1 as the text (4.54:1)
  • AAA: use #b083dd as the text (7.14:1)
  • AA: or shift the background to #969696 (4.55:1)
  • AAA: or shift the background to #bdbdbd (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #401b64 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

#401b64 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #401b64
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 #401b64 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/401b64-b59cc4-c9cb62-2c1f2d-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