Color

#b70906

#b70906
hex#b70906
rgbrgb(183, 9, 6)
hslhsl(1, 94%, 37%)
oklchoklch(0.492 0.198 29.1)
Closest name: Bullseye (#b9030a)Relative luminance 0.1028

Colors that go with #b70906

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 →

#06b4b7

#b7065b · #b76106

#06b709 · #0906b7

Split-complementary

Open in tool →

#06b761 · #065bb7

#5bb706 · #06b4b7 · #6106b7

Contrast

#b70906 as textRatioAAAA largeAAAFix
Aaon white
6.87:1passpassfail
  • AAA: use #b20806 as the text (7.17:1)
Aaon black
3.06:1failpassfail
  • AA: use #e90b07 as the text (4.52:1)
  • AAA: use #fa6361 as the text (7.02:1)
  • AA: or shift the background to #d1d1d1 (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 #b70906 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#b70906 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b70906
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 #b70906 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b70906-c4a19c-62cb9a-2d261f-f1e9ed?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