Color

#0a4352

#0a4352
hex#0a4352
rgbrgb(10, 67, 82)
hslhsl(193, 78%, 18%)
oklchoklch(0.356 0.06 220.6)
Closest name: Cold and Dark (#154250)Relative luminance 0.0469

Colors that go with #0a4352

Crimson, Denim 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 →

#521a0a

#0a523d · #0a1e52

#520a42 · #42520a

Split-complementary

Open in tool →

#520a1e · #523d0a

#3d0a52 · #521a0a · #1e520a

Contrast

#0a4352 as textRatioAAAA largeAAAFix
Aaon white
10.84:1passpasspassPasses AAA — no fix needed.
Aaon black
1.94:1failfailfail
  • AA: use #14819f as the text (4.67:1)
  • AAA: use #19a2c8 as the text (7.04:1)
  • AA: or shift the background to #a8a8a8 (4.56:1)
  • AAA: or shift the background to #d1d1d1 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0a4352 as the background.

Brands using this color

Fonts for this mood

#0a4352 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0a4352
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 #0a4352 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0a4352-a2b5be-df4e75-1f242d-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