Color

#0c4bca

#0c4bca
hex#0c4bca
rgbrgb(12, 75, 202)
hslhsl(220, 89%, 42%)
oklchoklch(0.466 0.206 262.3)
Closest name: Cobalt Blue (#0047ab)Relative luminance 0.0937

Colors that go with #0c4bca

Charcoal, Crimson and Steel 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 →

#ca8b0c

#0cabca · #2c0cca

#ca0c4b · #4bca0c

Split-complementary

Open in tool →

#ca2c0c · #abca0c

#ca0cab · #ca8b0c · #0cca2c

Contrast

#0c4bca as textRatioAAAA largeAAAFix
Aaon white
7.3:1passpasspassPasses AAA — no fix needed.
Aaon black
2.87:1failfailfail
  • AA: use #2b6ef3 as the text (4.63:1)
  • AAA: use #6595f6 as the text (7.18:1)
  • AA: or shift the background to #cccccc (4.55:1)
  • AAA: or shift the background to #fcfcfc (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 #0c4bca as the background.

Brands using this color

Fonts for this mood

#0c4bca reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0c4bca
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 #0c4bca and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0c4bca-9ca5c4-df694e-211f2d-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