Color

#0c09ce

#0c09ce
hex#0c09ce
rgbrgb(12, 9, 206)
hslhsl(241, 92%, 42%)
oklchoklch(0.391 0.262 265.4)
Closest name: mediumblue (#0000cd)Relative luminance 0.0473

Colors that go with #0c09ce

Charcoal, Crimson 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 →

#cace09

#0968ce · #6e09ce

#ce0c09 · #09ce0c

Split-complementary

Open in tool →

#ce6e09 · #68ce09

#ce0968 · #cace09 · #09ce6e

Contrast

#0c09ce as textRatioAAAA largeAAAFix
Aaon white
10.79:1passpasspassPasses AAA — no fix needed.
Aaon black
1.95:1failfailfail
  • AA: use #6562f8 as the text (4.66:1)
  • AAA: use #8b89fa as the text (7.06:1)
  • AA: or shift the background to #a8a8a8 (4.54:1)
  • AAA: or shift the background to #d1d1d1 (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0c09ce as the background.

Brands using this color

Fonts for this mood

#0c09ce reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0c09ce
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 #0c09ce and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0c09ce-a19cc4-df9b4e-261f2d-e9edf1?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