Color

#330b38

#330b38
hex#330b38
rgbrgb(51, 11, 56)
hslhsl(293, 67%, 13%)
oklchoklch(0.243 0.091 323.1)
Closest name: Dark Purple (#35063e)Relative luminance 0.0123

Colors that go with #330b38

Blue Violet, Charcoal 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 →

#10370b

#1c0b37 · #370b26

#37320b · #0b3732

Split-complementary

Open in tool →

#26370b · #0b371c

#371c0b · #10370b · #0b2637

Contrast

#330b38 as textRatioAAAA largeAAAFix
Aaon white
16.86:1passpasspassPasses AAA — no fix needed.
Aaon black
1.25:1failfailfail
  • AA: use #c12ad5 as the text (4.56:1)
  • AAA: use #d56ee2 as the text (7.16:1)
  • AA: or shift the background to #858585 (4.57:1)
  • AAA: or shift the background to #a8a8a8 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #330b38 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

#330b38 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #330b38
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 #330b38 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/330b38-c19fc1-a1cb62-2d1f29-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