Color

#cb3d15

#cb3d15
hex#cb3d15
rgbrgb(203, 61, 21)
hslhsl(13, 81%, 44%)
oklchoklch(0.565 0.185 35.2)
Closest name: Bolognese (#bb4400)Relative luminance 0.1609

Colors that go with #cb3d15

Charcoal, Royal Blue 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.

Real palettes that use #cb3d15

Tints & shades

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

Harmonies

Complementary

Open in tool →

#15a4cb

#cb1549 · #cb9815

#15cb3d · #3d15cb

Split-complementary

Open in tool →

#15cb98 · #1549cb

#49cb15 · #15a4cb · #9815cb

Contrast

#cb3d15 as textRatioAAAA largeAAAFix
Aaon white
4.98:1passpassfail
  • AAA: use #a23011 as the text (7.08:1)
Aaon black
4.22:1failpassfail
  • AA: use #d43f16 as the text (4.52:1)
  • AAA: use #ed7250 as the text (7.12:1)
  • AA: or shift the background to #f5f5f5 (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #cb3d15 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#cb3d15 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #cb3d15
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 #cb3d15 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/cb3d15-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