Color

#ff2f00

#ff2f00
hex#ff2f00
rgbrgb(255, 47, 0)
hslhsl(11, 100%, 50%)
oklchoklch(0.644 0.243 32.1)
Closest name: red (#ff0000)Relative luminance 0.2329

Tints & shades

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

Harmonies

Complementary

Open in tool →

#00d0ff

#ff0051 · #ffae00

#00ff2f · #2f00ff

Split-complementary

Open in tool →

#00ffae · #0051ff

#51ff00 · #00d0ff · #ae00ff

Contrast

#ff2f00 as textRatioAAAA largeAAAFix
Aaon white
3.71:1failpassfail
  • AA: use #e02900 as the text (4.68:1)
  • AAA: use #ad2000 as the text (7.04:1)
  • AA: or shift the background to #1c1c1c (4.59:1)
Aaon black
5.66:1passpassfail
  • AAA: use #ff613d as the text (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #ff2f00 as the background.

Brands using this color

Fonts for this mood

#ff2f00 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #ff2f00
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 #ff2f00 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ff2f00-c4a89c-62cbab-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