Color

#f01000

#f01000
hex#f01000
rgbrgb(240, 16, 0)
hslhsl(4, 100%, 47%)
oklchoklch(0.603 0.243 29.8)
Closest name: Alarm (#ec0003)Relative luminance 0.189

Tints & shades

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

Harmonies

Complementary

Open in tool →

#00e0f0

#f00068 · #f08800

#00f010 · #1000f0

Split-complementary

Open in tool →

#00f088 · #0068f0

#68f000 · #00e0f0 · #8800f0

Contrast

#f01000 as textRatioAAAA largeAAAFix
Aaon white
4.39:1failpassfail
  • AA: use #eb1000 as the text (4.56:1)
  • AAA: use #b30c00 as the text (7.07:1)
  • AA: or shift the background to #0a0a0a (4.51:1)
Aaon black
4.78:1passpassfail
  • AAA: use #ff6257 as the text (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #f01000 as the background.

Brands using this color

Fonts for this mood

#f01000 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #f01000
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 #f01000 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/f01000-c4a39c-62cb9f-2d261f-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