Color

#0c408d

#0c408d
hex#0c408d
rgbrgb(12, 64, 141)
hslhsl(216, 84%, 30%)
oklchoklch(0.389 0.139 259.3)
Closest name: Cascade Twilight (#234893)Relative luminance 0.0567

Colors that go with #0c408d

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.

Real palettes that use #0c408d

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#8d590c

#0c808d · #190c8d

#8d0c40 · #408d0c

Split-complementary

Open in tool →

#8d190c · #808d0c

#8d0c80 · #8d590c · #0c8d19

Contrast

#0c408d as textRatioAAAA largeAAAFix
Aaon white
9.84:1passpasspassPasses AAA — no fix needed.
Aaon black
2.13:1failfailfail
  • AA: use #1e70eb as the text (4.57:1)
  • AAA: use #5b97f1 as the text (7.14:1)
  • AA: or shift the background to #b0b0b0 (4.54:1)
  • AAA: or shift the background to #dbdbdb (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0c408d as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#0c408d reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0c408d
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 #0c408d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0c408d-9ca7c4-df5f4e-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