Color

#1d100b

#1d100b
hex#1d100b
rgbrgb(29, 16, 11)
hslhsl(17, 45%, 8%)
oklchoklch(0.189 0.024 41.8)
Closest name: Italian Roast (#221111)Relative luminance 0.0066

Tints & shades

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

Harmonies

Complementary

Open in tool →

#0b181e

#1e0b0f · #1e1a0b

#0b1e10 · #100b1e

Split-complementary

Open in tool →

#0b1e1a · #0b0f1e

#0f1e0b · #0b181e · #1a0b1e

Contrast

#1d100b as textRatioAAAA largeAAAFix
Aaon white
18.56:1passpasspassPasses AAA — no fix needed.
Aaon black
1.13:1failfailfail
  • AA: use #ae6042 as the text (4.55:1)
  • AAA: use #c8886f as the text (7.21:1)
  • AA: or shift the background to #7d7d7d (4.51:1)
  • AAA: or shift the background to #a1a1a1 (7.19:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1d100b as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#1d100b reads as warm, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1d100b
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 #1d100b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1d100b-c4ac9c-62cbb6-2d291f-f1e9eb?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