Color

#31273a

#31273a
hex#31273a
rgbrgb(49, 39, 58)
hslhsl(272, 20%, 19%)
oklchoklch(0.292 0.036 308.2)
Closest name: Haiti (#2c2a35)Relative luminance 0.0241

Colors that go with #31273a

Dark Olive Green, Sienna and Slate Blue 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 #31273a

Tints & shades

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

Harmonies

Complementary

Open in tool →

#303a27

#27273a · #3a2739

#3a3127 · #273a31

Split-complementary

Open in tool →

#393a27 · #273a27

#3a2727 · #303a27 · #27393a

Contrast

#31273a as textRatioAAAA largeAAAFix
Aaon white
14.17:1passpasspassPasses AAA — no fix needed.
Aaon black
1.48:1failfailfail
  • AA: use #866c9d as the text (4.65:1)
  • AAA: use #a28eb4 as the text (7.06:1)
  • AA: or shift the background to #949494 (4.67:1)
  • AAA: or shift the background to #b8b8b8 (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 #31273a as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#31273a reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #31273a
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 #31273a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/31273a-b69cc4-c5cb62-2d1f2d-eae9f1?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