Color

#0b1917

#0b1917
hex#0b1917
rgbrgb(11, 25, 23)
hslhsl(171, 39%, 7%)
oklchoklch(0.2 0.02 184.3)
Closest name: Black Stallion (#0e191c)Relative luminance 0.0083

Tints & shades

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

Harmonies

Complementary

Open in tool →

#190b0d

#0b1910 · #0b1419

#170b19 · #19170b

Split-complementary

Open in tool →

#190b14 · #19100b

#100b19 · #190b0d · #14190b

Contrast

#0b1917 as textRatioAAAA largeAAAFix
Aaon white
18.02:1passpasspassPasses AAA — no fix needed.
Aaon black
1.17:1failfailfail
  • AA: use #388075 as the text (4.51:1)
  • AAA: use #49a799 as the text (7.27:1)
  • AA: or shift the background to #808080 (4.56:1)
  • AAA: or shift the background to #a3a3a3 (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0b1917 as the background.

Brands using this color

Fonts for this mood

#0b1917 reads as dark, luxury, bold. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0b1917
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 #0b1917 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0b1917-a2bebd-d459a7-1f292d-e9f1ec?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