Color

#3a031d

#3a031d
hex#3a031d
rgbrgb(58, 3, 29)
hslhsl(332, 90%, 12%)
oklchoklch(0.231 0.088 357.8)
Closest name: Vienna Roast (#330022)Relative luminance 0.0105

Tints & shades

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

Harmonies

Complementary

Open in tool →

#033a20

#3a0338 · #3a0503

#1d3a03 · #031d3a

Split-complementary

Open in tool →

#033a05 · #03383a

#383a03 · #033a20 · #05033a

Contrast

#3a031d as textRatioAAAA largeAAAFix
Aaon white
17.35:1passpasspassPasses AAA — no fix needed.
Aaon black
1.21:1failfailfail
  • AA: use #e40c71 as the text (4.59:1)
  • AAA: use #f75fa6 as the text (7.14:1)
  • AA: or shift the background to #828282 (4.51:1)
  • 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 #3a031d 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

#3a031d reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3a031d
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 #3a031d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3a031d-c49caa-62cb67-2d1f20-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