Color

#340a5c

#340a5c
hex#340a5c
rgbrgb(52, 10, 92)
hslhsl(271, 80%, 20%)
oklchoklch(0.275 0.131 300.6)
Closest name: Cotinga Purple (#340059)Relative luminance 0.0172

Colors that go with #340a5c

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 →

#325c0a

#0c0a5c · #5c0a5a

#5c340a · #0a5c34

Split-complementary

Open in tool →

#5a5c0a · #0a5c0c

#5c0c0a · #325c0a · #0a5a5c

Contrast

#340a5c as textRatioAAAA largeAAAFix
Aaon white
15.63:1passpasspassPasses AAA — no fix needed.
Aaon black
1.34:1failfailfail
  • AA: use #9c47eb as the text (4.51:1)
  • AAA: use #b77af0 as the text (7.06:1)
  • AA: or shift the background to #8a8a8a (4.53:1)
  • AAA: or shift the background to #b0b0b0 (7.2:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #340a5c 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

#340a5c reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #340a5c
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 #340a5c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/340a5c-b59cc4-c7cb62-2c1f2d-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