Color

#330d3a

#330d3a
hex#330d3a
rgbrgb(51, 13, 58)
hslhsl(291, 63%, 14%)
oklchoklch(0.246 0.09 321)
Closest name: Dark Purple (#35063e)Relative luminance 0.013

Colors that go with #330d3a

Charcoal, Slate Blue and Teal 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 →

#143a0d

#1d0d3a · #3a0d2a

#3a330d · #0d3a33

Split-complementary

Open in tool →

#2a3a0d · #0d3a1d

#3a1d0d · #143a0d · #0d2a3a

Contrast

#330d3a as textRatioAAAA largeAAAFix
Aaon white
16.67:1passpasspassPasses AAA — no fix needed.
Aaon black
1.26:1failfailfail
  • AA: use #bb37d2 as the text (4.59:1)
  • AAA: use #cf72df as the text (7.13:1)
  • AA: or shift the background to #858585 (4.52:1)
  • AAA: or shift the background to #a8a8a8 (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #330d3a 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

#330d3a reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #330d3a
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 #330d3a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/330d3a-bf9fc1-a4cb62-2d1f29-ece9f1?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