Color

#0d124a

#0d124a
hex#0d124a
rgbrgb(13, 18, 74)
hslhsl(235, 70%, 17%)
oklchoklch(0.225 0.102 271.1)
Closest name: Deadly Depths (#111144)Relative luminance 0.0101

Colors that go with #0d124a

Charcoal, Rust and Sea Green 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 →

#4a450d

#0d304a · #260d4a

#4a0d12 · #124a0d

Split-complementary

Open in tool →

#4a260d · #304a0d

#4a0d30 · #4a450d · #0d4a26

Contrast

#0d124a as textRatioAAAA largeAAAFix
Aaon white
17.46:1passpasspassPasses AAA — no fix needed.
Aaon black
1.2:1failfailfail
  • AA: use #5f6ae3 as the text (4.66:1)
  • AAA: use #868eea as the text (7.07:1)
  • AA: or shift the background to #828282 (4.54:1)
  • AAA: or shift the background to #a6a6a6 (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0d124a as the background.

Brands using this color

Fonts for this mood

#0d124a reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0d124a
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 #0d124a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0d124a-9e9cc4-df8d4e-241f2d-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