Color

#0d456e

#0d456e
hex#0d456e
rgbrgb(13, 69, 110)
hslhsl(205, 79%, 24%)
oklchoklch(0.378 0.089 246.2)
Closest name: Aegean Blue (#1b416f)Relative luminance 0.0547

Colors that go with #0d456e

Crimson, Royal Blue and Teal 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 →

#6e350d

#0d6e65 · #0d156e

#6e0d45 · #456e0d

Split-complementary

Open in tool →

#6e0d15 · #6e650d

#650d6e · #6e350d · #156e0d

Contrast

#0d456e as textRatioAAAA largeAAAFix
Aaon white
10.03:1passpasspassPasses AAA — no fix needed.
Aaon black
2.09:1failfailfail
  • AA: use #1679c0 as the text (4.53:1)
  • AAA: use #369ee7 as the text (7.2:1)
  • AA: or shift the background to #b0b0b0 (4.63:1)
  • AAA: or shift the background to #d9d9d9 (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 #0d456e as the background.

Brands using this color

Fonts for this mood

#0d456e reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0d456e
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 #0d456e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0d456e-9cafc4-df4e58-1f212d-e9f1f0?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