Color

#401c63

#401c63
hex#401c63
rgbrgb(64, 28, 99)
hslhsl(270, 56%, 25%)
oklchoklch(0.319 0.12 303.5)
Closest name: Fading Horizon (#442266)Relative luminance 0.0282

Colors that go with #401c63

Charcoal, Royal Blue and Cadet 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 →

#40631c

#1c1c63 · #631c63

#63401c · #1c6340

Split-complementary

Open in tool →

#63631c · #1c631c

#631c1c · #40631c · #1c6363

Contrast

#401c63 as textRatioAAAA largeAAAFix
Aaon white
13.42:1passpasspassPasses AAA — no fix needed.
Aaon black
1.56:1failfailfail
  • AA: use #9458d0 as the text (4.57:1)
  • AAA: use #b084dc as the text (7.18:1)
  • AA: or shift the background to #969696 (4.54:1)
  • AAA: or shift the background to #bdbdbd (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #401c63 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

#401c63 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #401c63
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 #401c63 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/401c63-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