Color

#ef060a

#ef060a
hex#ef060a
rgbrgb(239, 6, 10)
hslhsl(359, 95%, 48%)
oklchoklch(0.599 0.244 28.8)
Closest name: Alarm (#ec0003)Relative luminance 0.185

Tints & shades

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

Harmonies

Complementary

Open in tool →

#06efeb

#ef067e · #ef7706

#0aef06 · #060aef

Split-complementary

Open in tool →

#06ef77 · #067eef

#7eef06 · #06efeb · #7706ef

Contrast

#ef060a as textRatioAAAA largeAAAFix
Aaon white
4.47:1failpassfail
  • AA: use #ea060a as the text (4.64:1)
  • AAA: use #b30507 as the text (7.14:1)
  • AA: or shift the background to #050505 (4.56:1)
Aaon black
4.7:1passpassfail
  • AAA: use #fb6567 as the text (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #ef060a as the background.

Brands using this color

Fonts for this mood

#ef060a reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #ef060a
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 #ef060a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ef060a-c4a09c-62cb96-2d251f-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