Color

#0a173e

#0a173e
hex#0a173e
rgbrgb(10, 23, 62)
hslhsl(225, 72%, 14%)
oklchoklch(0.221 0.077 266.2)
Closest name: Deadly Depths (#111144)Relative luminance 0.0103

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#3d310a

#0a313d · #170a3d

#3d0a17 · #173d0a

Split-complementary

Open in tool →

#3d170a · #313d0a

#3d0a31 · #3d310a · #0a3d17

Contrast

#0a173e as textRatioAAAA largeAAAFix
Aaon white
17.43:1passpasspassPasses AAA — no fix needed.
Aaon black
1.21:1failfailfail
  • AA: use #476de1 as the text (4.54:1)
  • AAA: use #7793e9 as the text (7.13:1)
  • AA: or shift the background to #828282 (4.53:1)
  • AAA: or shift the background to #a6a6a6 (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0a173e as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#0a173e reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0a173e
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #0a173e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0a173e-9ca1c4-df754e-221f2d-e9eff1?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