Color

#0b151e

#0b151e
hex#0b151e
rgbrgb(11, 21, 30)
hslhsl(208, 46%, 8%)
oklchoklch(0.191 0.024 246.6)
Closest name: Midnight Edition (#0c121b)Relative luminance 0.007

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1e140b

#0b1e1d · #0b0c1e

#1e0b15 · #151e0b

Split-complementary

Open in tool →

#1e0b0c · #1e1d0b

#1d0b1e · #1e140b · #0c1e0b

Contrast

#0b151e as textRatioAAAA largeAAAFix
Aaon white
18.42:1passpasspassPasses AAA — no fix needed.
Aaon black
1.14:1failfailfail
  • AA: use #3f79ab as the text (4.53:1)
  • AAA: use #669ac7 as the text (7.01:1)
  • AA: or shift the background to #808080 (4.66:1)
  • AAA: or shift the background to #a1a1a1 (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0b151e as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#0b151e reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0b151e
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 #0b151e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0b151e-9cadc4-df4e51-1f212d-e9f1f1?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