Color

#e6000b

#e6000b
hex#e6000b
rgbrgb(230, 0, 11)
hslhsl(357, 100%, 45%)
oklchoklch(0.581 0.238 28.5)
Closest name: Alarm (#ec0003)Relative luminance 0.1685

Tints & shades

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

Harmonies

Complementary

Open in tool →

#00e6da

#e6007e · #e66700

#0be600 · #000be6

Split-complementary

Open in tool →

#00e667 · #007ee6

#7ee600 · #00e6da · #6700e6

Contrast

#e6000b as textRatioAAAA largeAAAFix
Aaon white
4.81:1passpassfail
  • AAA: use #b30009 as the text (7.19:1)
Aaon black
4.37:1failpassfail
  • AA: use #eb000c as the text (4.54:1)
  • AAA: use #ff6169 as the text (7.17:1)
  • AA: or shift the background to #fafafa (4.6:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #e6000b as the background.

Brands using this color

Fonts for this mood

#e6000b reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #e6000b
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 #e6000b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/e6000b-c49f9c-62cb93-2d251f-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