Color

#0c55ca

#0c55ca
hex#0c55ca
rgbrgb(12, 85, 202)
hslhsl(217, 89%, 42%)
oklchoklch(0.486 0.194 260.6)
Closest name: Denim (#1560bd)Relative luminance 0.1084

Colors that go with #0c55ca

Charcoal, Crimson and Amber 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 →

#ca810c

#0cb4ca · #220cca

#ca0c55 · #55ca0c

Split-complementary

Open in tool →

#ca220c · #b4ca0c

#ca0cb4 · #ca810c · #0cca22

Contrast

#0c55ca as textRatioAAAA largeAAAFix
Aaon white
6.63:1passpassfail
  • AAA: use #0b51c1 as the text (7.09:1)
Aaon black
3.17:1failpassfail
  • AA: use #1c6ef2 as the text (4.56:1)
  • AAA: use #5b96f5 as the text (7.13:1)
  • AA: or shift the background to #d6d6d6 (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0c55ca as the background.

Brands using this color

Fonts for this mood

#0c55ca reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0c55ca
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 #0c55ca and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0c55ca-9ca7c4-df624e-201f2d-e9f0f1?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