Color

#cb2901

#cb2901
hex#cb2901
rgbrgb(203, 41, 1)
hslhsl(12, 99%, 40%)
oklchoklch(0.546 0.201 32.9)
Closest name: Blood Kiss (#c30b0a)Relative luminance 0.1428

Tints & shades

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

Harmonies

Complementary

Open in tool →

#01a3cb

#cb013e · #cb8e01

#01cb29 · #2901cb

Split-complementary

Open in tool →

#01cb8e · #013ecb

#3ecb01 · #01a3cb · #8e01cb

Contrast

#cb2901 as textRatioAAAA largeAAAFix
Aaon white
5.44:1passpassfail
  • AAA: use #a72201 as the text (7.31:1)
Aaon black
3.86:1failpassfail
  • AA: use #df2e01 as the text (4.53:1)
  • AAA: use #fe653e as the text (7.15:1)
  • AA: or shift the background to #ebebeb (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 #cb2901 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

#cb2901 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #cb2901
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 #cb2901 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/cb2901-c4a99c-62cbad-2d281f-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