Color

#0b230b

#0b230b
hex#0b230b
rgbrgb(11, 35, 11)
hslhsl(120, 52%, 9%)
oklchoklch(0.23 0.053 143.6)
Closest name: Nightmare (#112211)Relative luminance 0.013

Colors that go with #0b230b

Charcoal, Royal Blue and Rust lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#230b23

#17230b · #0b2317

#0b0b23 · #230b0b

Split-complementary

Open in tool →

#170b23 · #230b17

#0b1723 · #230b23 · #23170b

Contrast

#0b230b as textRatioAAAA largeAAAFix
Aaon white
16.67:1passpasspassPasses AAA — no fix needed.
Aaon black
1.26:1failfailfail
  • AA: use #2b882b as the text (4.66:1)
  • AAA: use #36ab36 as the text (7.04:1)
  • AA: or shift the background to #858585 (4.52:1)
  • AAA: or shift the background to #a8a8a8 (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0b230b as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#0b230b reads as dark, luxury, bold. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0b230b
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #0b230b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0b230b-a2bea5-994edf-1f2d25-edf1e9?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