Color

#401a74

#401a74
hex#401a74
rgbrgb(64, 26, 116)
hslhsl(265, 63%, 28%)
oklchoklch(0.331 0.143 297)
Closest name: Explorer of the Galaxies (#3a1f76)Relative luminance 0.0309

Colors that go with #401a74

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 →

#4f741a

#1a2274 · #6d1a74

#74401a · #1a7440

Split-complementary

Open in tool →

#746d1a · #22741a

#741a22 · #4f741a · #1a746d

Contrast

#401a74 as textRatioAAAA largeAAAFix
Aaon white
12.98:1passpasspassPasses AAA — no fix needed.
Aaon black
1.62:1failfailfail
  • AA: use #8e59d9 as the text (4.58:1)
  • AAA: use #aa82e3 as the text (7.01:1)
  • AA: or shift the background to #999999 (4.56:1)
  • AAA: or shift the background to #bfbfbf (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #401a74 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

#401a74 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #401a74
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 #401a74 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/401a74-b19cc4-dfd54e-2b1f2d-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