Color

#0a368f

#0a368f
hex#0a368f
rgbrgb(10, 54, 143)
hslhsl(220, 87%, 30%)
oklchoklch(0.369 0.154 262.3)
Closest name: Deep Space Royal (#223382)Relative luminance 0.0469

Colors that go with #0a368f

Charcoal, Crimson and Steel Blue 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 →

#8f630a

#0a798f · #200a8f

#8f0a36 · #368f0a

Split-complementary

Open in tool →

#8f200a · #798f0a

#8f0a79 · #8f630a · #0a8f20

Contrast

#0a368f as textRatioAAAA largeAAAFix
Aaon white
10.84:1passpasspassPasses AAA — no fix needed.
Aaon black
1.94:1failfailfail
  • AA: use #2d6ef0 as the text (4.6:1)
  • AAA: use #6696f4 as the text (7.23:1)
  • 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 #0a368f as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#0a368f reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0a368f
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 #0a368f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0a368f-9ca5c4-df694e-211f2d-e9f0f1?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