Color

#0a111f

#0a111f
hex#0a111f
rgbrgb(10, 17, 31)
hslhsl(220, 51%, 8%)
oklchoklch(0.179 0.031 263.3)
Closest name: Midnight Edition (#0c121b)Relative luminance 0.0056

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1f180a

#0a1b1f · #0d0a1f

#1f0a11 · #111f0a

Split-complementary

Open in tool →

#1f0d0a · #1b1f0a

#1f0a1b · #1f180a · #0a1f0d

Contrast

#0a111f as textRatioAAAA largeAAAFix
Aaon white
18.87:1passpasspassPasses AAA — no fix needed.
Aaon black
1.11:1failfailfail
  • AA: use #4a73c4 as the text (4.54:1)
  • AAA: use #7897d3 as the text (7.17:1)
  • AA: or shift the background to #7d7d7d (4.58:1)
  • AAA: or shift the background to #9e9e9e (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0a111f as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#0a111f reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0a111f
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 #0a111f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0a111f-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