Color

#31071c

#31071c
hex#31071c
rgbrgb(49, 7, 28)
hslhsl(330, 75%, 11%)
oklchoklch(0.217 0.072 354)
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 →

#07311c

#310731 · #310707

#1c3107 · #071c31

Split-complementary

Open in tool →

#073107 · #073131

#313107 · #07311c · #070731

Contrast

#31071c as textRatioAAAA largeAAAFix
Aaon white
17.83:1passpasspassPasses AAA — no fix needed.
Aaon black
1.18:1failfailfail
  • AA: use #db1f7d as the text (4.5:1)
  • AAA: use #ea6cab as the text (7.23:1)
  • AA: or shift the background to #808080 (4.51:1)
  • AAA: or shift the background to #a3a3a3 (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 #31071c 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

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

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

tool url/palettes/new/31071c-c49cab-62cb64-2d1f20-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