Color

#31071d

#31071d
hex#31071d
rgbrgb(49, 7, 29)
hslhsl(329, 75%, 11%)
oklchoklch(0.217 0.072 352.6)
Closest name: Vienna Roast (#330022)Relative luminance 0.0089

Tints & shades

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

Harmonies

Complementary

Open in tool →

#07311b

#300731 · #310708

#1d3107 · #071d31

Split-complementary

Open in tool →

#083107 · #073130

#313007 · #07311b · #070831

Contrast

#31071d as textRatioAAAA largeAAAFix
Aaon white
17.82:1passpasspassPasses AAA — no fix needed.
Aaon black
1.18:1failfailfail
  • AA: use #db1f80 as the text (4.52:1)
  • AAA: use #ea6cad as the text (7.25:1)
  • AA: or shift the background to #808080 (4.51:1)
  • AAA: or shift the background to #a3a3a3 (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #31071d 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

#31071d reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #31071d
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 #31071d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/31071d-c49cac-62cb62-2d1f21-f1e9f1?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