Color

#31020d

#31020d
hex#31020d
rgbrgb(49, 2, 13)
hslhsl(346, 92%, 10%)
oklchoklch(0.203 0.076 12.4)
Closest name: Vienna Roast (#330022)Relative luminance 0.0073

Colors that go with #31020d

Charcoal, Denim and Rust lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Real palettes that use #31020d

Tints & shades

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

Harmonies

Complementary

Open in tool →

#023126

#310224 · #310f02

#0d3102 · #020d31

Split-complementary

Open in tool →

#02310f · #022431

#243102 · #023126 · #0f0231

Contrast

#31020d as textRatioAAAA largeAAAFix
Aaon white
18.34:1passpasspassPasses AAA — no fix needed.
Aaon black
1.15:1failfailfail
  • AA: use #eb0a3e as the text (4.65:1)
  • AAA: use #f86285 as the text (7.08:1)
  • AA: or shift the background to #808080 (4.64:1)
  • AAA: or shift the background to #a1a1a1 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #31020d 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

#31020d reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #31020d
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #31020d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/31020d-c49ca1-62cb80-2d221f-f1e9ef?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