Color

#31071e

#31071e
hex#31071e
rgbrgb(49, 7, 30)
hslhsl(327, 75%, 11%)
oklchoklch(0.218 0.073 351.1)
Closest name: Vienna Roast (#330022)Relative luminance 0.009

Tints & shades

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

Harmonies

Complementary

Open in tool →

#07311a

#2f0731 · #310709

#1e3107 · #071e31

Split-complementary

Open in tool →

#093107 · #07312f

#312f07 · #07311a · #070931

Contrast

#31071e as textRatioAAAA largeAAAFix
Aaon white
17.8:1passpasspassPasses AAA — no fix needed.
Aaon black
1.18:1failfailfail
  • AA: use #db1f86 as the text (4.55:1)
  • AAA: use #e967af as the text (7.02:1)
  • 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 #31071e 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

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

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

tool url/palettes/new/31071e-c19fae-66cb62-2d1f21-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