Color

#331f1f

#331f1f
hex#331f1f
rgbrgb(51, 31, 31)
hslhsl(0, 24%, 16%)
oklchoklch(0.265 0.031 19.4)
Closest name: Aubergine (#372528)Relative luminance 0.0178

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1f3333

#331f29 · #33291f

#1f331f · #1f1f33

Split-complementary

Open in tool →

#1f3329 · #1f2933

#29331f · #1f3333 · #291f33

Contrast

#331f1f as textRatioAAAA largeAAAFix
Aaon white
15.48:1passpasspassPasses AAA — no fix needed.
Aaon black
1.36:1failfailfail
  • AA: use #a06464 as the text (4.5:1)
  • AAA: use #b78a8a as the text (7.02:1)
  • AA: or shift the background to #8c8c8c (4.6:1)
  • AAA: or shift the background to #b0b0b0 (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #331f1f 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

#331f1f reads as warm, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #331f1f
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 #331f1f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/331f1f-c4a19c-62cb98-2d251f-f1e9ed?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