Color

#330cb6

#330cb6
hex#330cb6
rgbrgb(51, 12, 182)
hslhsl(254, 88%, 38%)
oklchoklch(0.379 0.227 276.7)
Closest name: Galactic Highway (#3311bb)Relative luminance 0.0434

Colors that go with #330cb6

Charcoal, Steel Blue and Cornflower 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 →

#8eb60c

#0c39b6 · #890cb6

#b6330c · #0cb633

Split-complementary

Open in tool →

#b6890c · #39b60c

#b60c39 · #8eb60c · #0cb689

Contrast

#330cb6 as textRatioAAAA largeAAAFix
Aaon white
11.24:1passpasspassPasses AAA — no fix needed.
Aaon black
1.87:1failfailfail
  • AA: use #7c57f4 as the text (4.53:1)
  • AAA: use #a187f7 as the text (7.32:1)
  • AA: or shift the background to #a6a6a6 (4.62:1)
  • AAA: or shift the background to #cfcfcf (7.21:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #330cb6 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

#330cb6 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #330cb6
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 #330cb6 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/330cb6-aa9cc4-dfbb4e-291f2d-e9ebf1?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