Color

#bd310a

#bd310a
hex#bd310a
rgbrgb(189, 49, 10)
hslhsl(13, 90%, 39%)
oklchoklch(0.528 0.182 34.4)
Closest name: Bloodshed (#ba271a)Relative luminance 0.1304

Tints & shades

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

Harmonies

Complementary

Open in tool →

#0a96bd

#bd0a3d · #bd8a0a

#0abd31 · #310abd

Split-complementary

Open in tool →

#0abd8a · #0a3dbd

#3dbd0a · #0a96bd · #8a0abd

Contrast

#bd310a as textRatioAAAA largeAAAFix
Aaon white
5.82:1passpassfail
  • AAA: use #a52a09 as the text (7.16:1)
Aaon black
3.61:1failpassfail
  • AA: use #da380b as the text (4.55:1)
  • AAA: use #f56d47 as the text (7.16:1)
  • AA: or shift the background to #e3e3e3 (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #bd310a 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

#bd310a reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #bd310a
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #bd310a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/bd310a-c4a99c-62cbaf-2d281f-f1e9eb?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