Color

#401e7b

#401e7b
hex#401e7b
rgbrgb(64, 30, 123)
hslhsl(262, 61%, 30%)
oklchoklch(0.342 0.147 293.9)
Closest name: Explorer of the Galaxies (#3a1f76)Relative luminance 0.0345

Colors that go with #401e7b

Charcoal, Royal Blue and Crimson 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 →

#597b1e

#1e2a7b · #6f1e7b

#7b401e · #1e7b40

Split-complementary

Open in tool →

#7b6f1e · #2a7b1e

#7b1e2a · #597b1e · #1e7b6f

Contrast

#401e7b as textRatioAAAA largeAAAFix
Aaon white
12.43:1passpasspassPasses AAA — no fix needed.
Aaon black
1.69:1failfailfail
  • AA: use #885bd7 as the text (4.52:1)
  • AAA: use #a684e1 as the text (7.01:1)
  • AA: or shift the background to #9c9c9c (4.53:1)
  • AAA: or shift the background to #c4c4c4 (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 #401e7b 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

#401e7b reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #401e7b
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 #401e7b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/401e7b-af9cc4-dfce4e-2a1f2d-e9eaf1?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