Color

#0b090b

#0b090b
hex#0b090b
rgbrgb(11, 9, 11)
hslhsl(300, 10%, 4%)
oklchoklch(0.143 0.006 325.9)
Closest name: Black Wash (#0c0c0c)Relative luminance 0.0029

Tints & shades

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

Harmonies

Complementary

Open in tool →

#090b09

#0a090b · #0b090a

#0b0b09 · #090b0b

Split-complementary

Open in tool →

#0a0b09 · #090b0a

#0b0a09 · #090b09 · #090a0b

Contrast

#0b090b as textRatioAAAA largeAAAFix
Aaon white
19.85:1passpasspassPasses AAA — no fix needed.
Aaon black
1.06:1failfailfail
  • AA: use #876e87 as the text (4.61:1)
  • AAA: use #a38fa3 as the text (7.02:1)
  • AA: or shift the background to #7a7a7a (4.62:1)
  • AAA: or shift the background to #9c9c9c (7.23:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0b090b as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#0b090b reads as warm, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0b090b
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 #0b090b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0b090b-c19fbd-95cb62-2d1f27-ede9f1?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