Color

#1f040f

#1f040f
hex#1f040f
rgbrgb(31, 4, 15)
hslhsl(336, 77%, 7%)
oklchoklch(0.167 0.052 357.2)
Closest name: Belladonna (#220011)Relative luminance 0.0041

Tints & shades

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

Harmonies

Complementary

Open in tool →

#042015

#20041d · #200704

#0f2004 · #040f20

Split-complementary

Open in tool →

#042007 · #041d20

#1d2004 · #042015 · #070420

Contrast

#1f040f as textRatioAAAA largeAAAFix
Aaon white
19.4:1passpasspassPasses AAA — no fix needed.
Aaon black
1.08:1failfailfail
  • AA: use #e21d6c as the text (4.63:1)
  • AAA: use #ec6a9e as the text (7.12:1)
  • AA: or shift the background to #7a7a7a (4.52:1)
  • AAA: or shift the background to #9c9c9c (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1f040f 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

#1f040f reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1f040f
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 #1f040f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1f040f-c49ca7-62cb6e-2d201f-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