Color

#0c29cf

#0c29cf
hex#0c29cf
rgbrgb(12, 41, 207)
hslhsl(231, 89%, 43%)
oklchoklch(0.418 0.246 265.2)
Closest name: Lapis on Neptune (#1f22d2)Relative luminance 0.0617

Colors that go with #0c29cf

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 →

#cfb20c

#0c8bcf · #500ccf

#cf0c29 · #29cf0c

Split-complementary

Open in tool →

#cf500c · #8bcf0c

#cf0c8b · #cfb20c · #0ccf50

Contrast

#0c29cf as textRatioAAAA largeAAAFix
Aaon white
9.4:1passpasspassPasses AAA — no fix needed.
Aaon black
2.23:1failfailfail
  • AA: use #4d66f5 as the text (4.53:1)
  • AAA: use #7d8ff7 as the text (7.14:1)
  • AA: or shift the background to #b5b5b5 (4.58:1)
  • AAA: or shift the background to #e0e0e0 (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0c29cf as the background.

Brands using this color

Fonts for this mood

#0c29cf reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0c29cf
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 #0c29cf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0c29cf-9c9ec4-df834e-231f2d-e9eef1?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