Color

#0d335e

#0d335e
hex#0d335e
rgbrgb(13, 51, 94)
hslhsl(212, 76%, 21%)
oklchoklch(0.321 0.087 254.4)
Closest name: Marine (#042e60)Relative luminance 0.0326

Colors that go with #0d335e

Crimson, Teal and Sienna 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 →

#5e380d

#0d5c5e · #100d5e

#5e0d33 · #335e0d

Split-complementary

Open in tool →

#5e100d · #5c5e0d

#5e0d5c · #5e380d · #0d5e10

Contrast

#0d335e as textRatioAAAA largeAAAFix
Aaon white
12.71:1passpasspassPasses AAA — no fix needed.
Aaon black
1.65:1failfailfail
  • AA: use #1d74d7 as the text (4.53:1)
  • AAA: use #5499e8 as the text (7.1:1)
  • AA: or shift the background to #9c9c9c (4.63:1)
  • AAA: or shift the background to #c2c2c2 (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0d335e as the background.

Brands using this color

Fonts for this mood

#0d335e reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0d335e
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 #0d335e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0d335e-9caac4-df564e-1f202d-e9f1f1?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