Color

#31100c

#31100c
hex#31100c
rgbrgb(49, 16, 12)
hslhsl(6, 61%, 12%)
oklchoklch(0.225 0.055 29.1)
Closest name: Black Cherry (#2c1620)Relative luminance 0.0105

Tints & shades

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

Harmonies

Complementary

Open in tool →

#0c2e31

#310c1b · #31220c

#0c3110 · #100c31

Split-complementary

Open in tool →

#0c3122 · #0c1b31

#1b310c · #0c2e31 · #220c31

Contrast

#31100c as textRatioAAAA largeAAAFix
Aaon white
17.36:1passpasspassPasses AAA — no fix needed.
Aaon black
1.21:1failfailfail
  • AA: use #ce4536 as the text (4.53:1)
  • AAA: use #dc7a6f as the text (7.06:1)
  • AA: or shift the background to #828282 (4.52:1)
  • AAA: or shift the background to #a6a6a6 (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #31100c 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

#31100c reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #31100c
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 #31100c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/31100c-c4a59c-62cba3-2d271f-f1e9ec?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