Color

#0d424f

#0d424f
hex#0d424f
rgbrgb(13, 66, 79)
hslhsl(192, 72%, 18%)
oklchoklch(0.352 0.057 218.4)
Closest name: Cold and Dark (#154250)Relative luminance 0.0455

Colors that go with #0d424f

Crimson, Steel 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 →

#4f1a0d

#0d4f3b · #0d214f

#4f0d42 · #424f0d

Split-complementary

Open in tool →

#4f0d21 · #4f3b0d

#3b0d4f · #4f1a0d · #214f0d

Contrast

#0d424f as textRatioAAAA largeAAAFix
Aaon white
11:1passpasspassPasses AAA — no fix needed.
Aaon black
1.91:1failfailfail
  • AA: use #19809a as the text (4.6:1)
  • AAA: use #20a4c5 as the text (7.18:1)
  • AA: or shift the background to #a6a6a6 (4.52:1)
  • AAA: or shift the background to #cfcfcf (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0d424f as the background.

Brands using this color

Fonts for this mood

#0d424f reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0d424f
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 #0d424f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0d424f-a2b5be-df4e77-1f242d-e9f1ef?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