Color

#b22715

#b22715
hex#b22715
rgbrgb(178, 39, 21)
hslhsl(7, 79%, 39%)
oklchoklch(0.5 0.178 31)
Closest name: firebrick (#b22222)Relative luminance 0.1097

Colors that go with #b22715

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 →

#15a0b2

#b21551 · #b27615

#15b227 · #2715b2

Split-complementary

Open in tool →

#15b276 · #1551b2

#51b215 · #15a0b2 · #7615b2

Contrast

#b22715 as textRatioAAAA largeAAAFix
Aaon white
6.57:1passpassfail
  • AAA: use #a92514 as the text (7.09:1)
Aaon black
3.19:1failpassfail
  • AA: use #e0311a as the text (4.62:1)
  • AAA: use #ec705f as the text (7.05:1)
  • AA: or shift the background to #d6d6d6 (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b22715 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#b22715 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b22715
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 #b22715 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b22715-c4a59c-62cba4-2d271f-f1e9ec?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