Color

#231900

#231900
hex#231900
rgbrgb(35, 25, 0)
hslhsl(43, 100%, 7%)
oklchoklch(0.22 0.045 88.5)
Closest name: Noir Mystique (#1f180a)Relative luminance 0.0105

Colors that go with #231900

Blue Violet, Charcoal and Royal 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 #231900

Tints & shades

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

Harmonies

Complementary

Open in tool →

#000a24

#240800 · #1c2400

#00241a · #1a0024

Split-complementary

Open in tool →

#001c24 · #080024

#002408 · #000a24 · #24001c

Contrast

#231900 as textRatioAAAA largeAAAFix
Aaon white
17.35:1passpasspassPasses AAA — no fix needed.
Aaon black
1.21:1failfailfail
  • AA: use #996e00 as the text (4.58:1)
  • AAA: use #c78f00 as the text (7.36:1)
  • AA: or shift the background to #828282 (4.51:1)
  • AAA: or shift the background to #a6a6a6 (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 #231900 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

#231900 reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #231900
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 #231900 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/231900-c4bd9c-62b2cb-2b2d1f-f1ebe9?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