Color

#1f191b

#1f191b
hex#1f191b
rgbrgb(31, 25, 27)
hslhsl(340, 11%, 11%)
oklchoklch(0.221 0.01 355.9)
Closest name: Night Demons (#201b20)Relative luminance 0.0107

Tints & shades

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

Harmonies

Complementary

Open in tool →

#191f1d

#1f191e · #1f1a19

#1b1f19 · #191b1f

Split-complementary

Open in tool →

#191f1a · #191e1f

#1e1f19 · #191f1d · #1a191f

Contrast

#1f191b as textRatioAAAA largeAAAFix
Aaon white
17.31:1passpasspassPasses AAA — no fix needed.
Aaon black
1.21:1failfailfail
  • AA: use #8b6f78 as the text (4.64:1)
  • AAA: use #a69198 as the text (7.12:1)
  • AA: or shift the background to #828282 (4.5:1)
  • AAA: or shift the background to #a6a6a6 (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1f191b as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#1f191b reads as warm, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1f191b
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

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

analyze #1f191b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1f191b-c49ca5-62cb75-2d211f-f1e9f0?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