Color

#0c4dcf

#0c4dcf
hex#0c4dcf
rgbrgb(12, 77, 207)
hslhsl(220, 89%, 43%)
oklchoklch(0.475 0.21 262.3)
Closest name: Denim (#1560bd)Relative luminance 0.0989

Colors that go with #0c4dcf

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 →

#cf8e0c

#0cafcf · #2d0ccf

#cf0c4d · #4dcf0c

Split-complementary

Open in tool →

#cf2d0c · #afcf0c

#cf0caf · #cf8e0c · #0ccf2d

Contrast

#0c4dcf as textRatioAAAA largeAAAFix
Aaon white
7.05:1passpasspassPasses AAA — no fix needed.
Aaon black
2.98:1failfailfail
  • AA: use #2b6ef3 as the text (4.63:1)
  • AAA: use #6595f6 as the text (7.18:1)
  • AA: or shift the background to #cfcfcf (4.53:1)
  • AAA: or shift the background to #ffffff (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0c4dcf as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#0c4dcf reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0c4dcf
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 #0c4dcf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0c4dcf-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