Color

#0b1313

#0b1313
hex#0b1313
rgbrgb(11, 19, 19)
hslhsl(180, 27%, 6%)
oklchoklch(0.179 0.012 196.1)
Closest name: Cursed Black (#131313)Relative luminance 0.0058

Tints & shades

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

Harmonies

Complementary

Open in tool →

#130b0b

#0b130f · #0b0f13

#130b13 · #13130b

Split-complementary

Open in tool →

#130b0f · #130f0b

#0f0b13 · #130b0b · #0f130b

Contrast

#0b1313 as textRatioAAAA largeAAAFix
Aaon white
18.8:1passpasspassPasses AAA — no fix needed.
Aaon black
1.12:1failfailfail
  • AA: use #497e7e as the text (4.57:1)
  • AAA: use #5da2a2 as the text (7.16:1)
  • AA: or shift the background to #7d7d7d (4.57:1)
  • AAA: or shift the background to #9e9e9e (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0b1313 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#0b1313 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0b1313
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 #0b1313 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0b1313-a2bbbe-d45994-1f272d-e9f1ed?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