Color

#ff2f05

#ff2f05
hex#ff2f05
rgbrgb(255, 47, 5)
hslhsl(10, 100%, 51%)
oklchoklch(0.644 0.243 31.9)
Closest name: red (#ff0000)Relative luminance 0.233

Tints & shades

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

Harmonies

Complementary

Open in tool →

#05d5ff

#ff0558 · #ffac05

#05ff2f · #2f05ff

Split-complementary

Open in tool →

#05ffac · #0558ff

#58ff05 · #05d5ff · #ac05ff

Contrast

#ff2f05 as textRatioAAAA largeAAAFix
Aaon white
3.71:1failpassfail
  • AA: use #e62600 as the text (4.52:1)
  • AAA: use #ad1d00 as the text (7.11:1)
  • AA: or shift the background to #1c1c1c (4.59:1)
Aaon black
5.66:1passpassfail
  • AAA: use #ff6242 as the text (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #ff2f05 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#ff2f05 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #ff2f05
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 #ff2f05 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ff2f05-c4a79c-62cbaa-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