Color

#ff130f

#ff130f
hex#ff130f
rgbrgb(255, 19, 15)
hslhsl(1, 100%, 53%)
oklchoklch(0.632 0.254 29)
Closest name: red (#ff0000)Relative luminance 0.2176

Tints & shades

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

Harmonies

Complementary

Open in tool →

#0ffbff

#ff0f83 · #ff8b0f

#0fff13 · #130fff

Split-complementary

Open in tool →

#0fff8b · #0f83ff

#83ff0f · #0ffbff · #8b0fff

Contrast

#ff130f as textRatioAAAA largeAAAFix
Aaon white
3.92:1failpassfail
  • AA: use #eb0400 as the text (4.62:1)
  • AAA: use #b30300 as the text (7.17:1)
  • AA: or shift the background to #171717 (4.57:1)
Aaon black
5.35:1passpassfail
  • AAA: use #ff5f5c as the text (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #ff130f as the background.

Brands using this color

Fonts for this mood

#ff130f reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #ff130f
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 #ff130f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ff130f-c4a19c-62cb9a-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