Color

#0b1d23

#0b1d23
hex#0b1d23
rgbrgb(11, 29, 35)
hslhsl(195, 52%, 9%)
oklchoklch(0.218 0.027 221.9)
Closest name: Black Stallion (#0e191c)Relative luminance 0.0107

Tints & shades

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

Harmonies

Complementary

Open in tool →

#23110b

#0b231d · #0b1123

#230b1d · #1d230b

Split-complementary

Open in tool →

#230b11 · #231d0b

#1d0b23 · #23110b · #11230b

Contrast

#0b1d23 as textRatioAAAA largeAAAFix
Aaon white
17.29:1passpasspassPasses AAA — no fix needed.
Aaon black
1.21:1failfailfail
  • AA: use #307d97 as the text (4.51:1)
  • AAA: use #3da1c2 as the text (7.08:1)
  • AA: or shift the background to #828282 (4.5:1)
  • AAA: or shift the background to #a6a6a6 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0b1d23 as the background.

Brands using this color

Fonts for this mood

#0b1d23 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0b1d23
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 #0b1d23 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0b1d23-9cb5c4-df4e70-1f242d-e9f1ef?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