Color

#b61631

#b61631
hex#b61631
rgbrgb(182, 22, 49)
hslhsl(350, 78%, 40%)
oklchoklch(0.499 0.189 20.4)
Closest name: Active Volcano (#bb1133)Relative luminance 0.1074

Colors that go with #b61631

Royal Blue, Steel Blue and Teal 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 →

#16b69b

#b61681 · #b64b16

#31b616 · #1631b6

Split-complementary

Open in tool →

#16b64b · #1681b6

#81b616 · #16b69b · #4b16b6

Contrast

#b61631 as textRatioAAAA largeAAAFix
Aaon white
6.67:1passpassfail
  • AAA: use #ac152f as the text (7.24:1)
Aaon black
3.15:1failpassfail
  • AA: use #e42141 as the text (4.59:1)
  • AAA: use #ed6e83 as the text (7.16:1)
  • AA: or shift the background to #d4d4d4 (4.5:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b61631 as the background.

Brands using this color

Fonts for this mood

#b61631 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b61631
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 #b61631 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b61631-c49c9e-62cb87-2d231f-f1e9ee?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