Color

#31022f

#31022f
hex#31022f
rgbrgb(49, 2, 47)
hslhsl(303, 92%, 10%)
oklchoklch(0.221 0.096 330.2)
Closest name: Vienna Roast (#330022)Relative luminance 0.009

Colors that go with #31022f

Blue Violet, Charcoal and Sea Green 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#023104

#1c0231 · #310217

#2f3102 · #022f31

Split-complementary

Open in tool →

#173102 · #02311c

#311c02 · #023104 · #021731

Contrast

#31022f as textRatioAAAA largeAAAFix
Aaon white
17.79:1passpasspassPasses AAA — no fix needed.
Aaon black
1.18:1failfailfail
  • AA: use #d309c8 as the text (4.64:1)
  • AAA: use #f745ee as the text (7.04:1)
  • AA: or shift the background to #808080 (4.5:1)
  • AAA: or shift the background to #a3a3a3 (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #31022f 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

#31022f reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #31022f
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 #31022f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/31022f-c19fbb-8fcb62-2d1f26-eee9f1?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