Color

#1d232f

#1d232f
hex#1d232f
rgbrgb(29, 35, 47)
hslhsl(220, 24%, 15%)
oklchoklch(0.256 0.024 264)
Closest name: Dark (#1b2431)Relative luminance 0.0167

Colors that go with #1d232f

Charcoal, Amber and 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2f291d

#1d2c2f · #201d2f

#2f1d23 · #232f1d

Split-complementary

Open in tool →

#2f201d · #2c2f1d

#2f1d2c · #2f291d · #1d2f20

Contrast

#1d232f as textRatioAAAA largeAAAFix
Aaon white
15.75:1passpasspassPasses AAA — no fix needed.
Aaon black
1.33:1failfailfail
  • AA: use #61759e as the text (4.55:1)
  • AAA: use #8796b5 as the text (7.06:1)
  • AA: or shift the background to #8a8a8a (4.56:1)
  • AAA: or shift the background to #adadad (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1d232f as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#1d232f reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1d232f
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 #1d232f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1d232f-9ca5c4-df694e-211f2d-e9f0f1?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