Color

#1b030f

#1b030f
hex#1b030f
rgbrgb(27, 3, 15)
hslhsl(330, 80%, 6%)
oklchoklch(0.156 0.05 350.9)
Closest name: Crow (#180614)Relative luminance 0.0033

Colors that go with #1b030f

Charcoal, Crimson and Steel Blue 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.

Real palettes that use #1b030f

Tints & shades

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

Harmonies

Complementary

Open in tool →

#031c0f

#1c031c · #1c0303

#0f1c03 · #030f1c

Split-complementary

Open in tool →

#031c03 · #031c1c

#1c1c03 · #031c0f · #03031c

Contrast

#1b030f as textRatioAAAA largeAAAFix
Aaon white
19.69:1passpasspassPasses AAA — no fix needed.
Aaon black
1.07:1failfailfail
  • AA: use #e1197d as the text (4.64:1)
  • AAA: use #ee68ab as the text (7.2:1)
  • AA: or shift the background to #7a7a7a (4.59:1)
  • AAA: or shift the background to #9c9c9c (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1b030f 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

#1b030f reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1b030f
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 #1b030f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1b030f-c49cab-62cb64-2d1f20-f1e9f1?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