Color

#1f191f

#1f191f
hex#1f191f
rgbrgb(31, 25, 31)
hslhsl(300, 11%, 11%)
oklchoklch(0.223 0.015 326.1)
Closest name: Night Demons (#201b20)Relative luminance 0.0109

Colors that go with #1f191f

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 →

#191f19

#1c191f · #1f191c

#1f1f19 · #191f1f

Split-complementary

Open in tool →

#1c1f19 · #191f1c

#1f1c19 · #191f19 · #191c1f

Contrast

#1f191f as textRatioAAAA largeAAAFix
Aaon white
17.25:1passpasspassPasses AAA — no fix needed.
Aaon black
1.22:1failfailfail
  • AA: use #886d88 as the text (4.59:1)
  • AAA: use #a691a6 as the text (7.22:1)
  • AA: or shift the background to #858585 (4.68:1)
  • AAA: or shift the background to #a6a6a6 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1f191f as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#1f191f reads as warm, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1f191f
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 #1f191f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1f191f-c19fbd-95cb62-2d1f27-ede9f1?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