Color

#40135e

#40135e
hex#40135e
rgbrgb(64, 19, 94)
hslhsl(276, 66%, 22%)
oklchoklch(0.303 0.126 307.7)
Closest name: Fabric of Space (#341758)Relative luminance 0.0236

Colors that go with #40135e

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 →

#315d13

#1a135d · #5d1356

#5d4013 · #135d40

Split-complementary

Open in tool →

#565d13 · #135d1a

#5d1a13 · #315d13 · #13565d

Contrast

#40135e as textRatioAAAA largeAAAFix
Aaon white
14.26:1passpasspassPasses AAA — no fix needed.
Aaon black
1.47:1failfailfail
  • AA: use #a24ddb as the text (4.62:1)
  • AAA: use #ba7ce4 as the text (7.09:1)
  • AA: or shift the background to #919191 (4.52:1)
  • AAA: or shift the background to #b8b8b8 (7.19:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #40135e 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

#40135e reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #40135e
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 #40135e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40135e-b99cc4-bfcb62-2d1f2d-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