Color

#ff2b0f

#ff2b0f
hex#ff2b0f
rgbrgb(255, 43, 15)
hslhsl(7, 100%, 53%)
oklchoklch(0.642 0.245 30.8)
Closest name: red (#ff0000)Relative luminance 0.2302

Tints & shades

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

Harmonies

Complementary

Open in tool →

#0fe3ff

#ff0f6b · #ffa30f

#0fff2b · #2b0fff

Split-complementary

Open in tool →

#0fffa3 · #0f6bff

#6bff0f · #0fe3ff · #a30fff

Contrast

#ff2b0f as textRatioAAAA largeAAAFix
Aaon white
3.75:1failpassfail
  • AA: use #e61b00 as the text (4.64:1)
  • AAA: use #ad1400 as the text (7.3:1)
  • AA: or shift the background to #1c1c1c (4.55:1)
Aaon black
5.6:1passpassfail
  • AAA: use #ff614d as the text (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #ff2b0f as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#ff2b0f reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #ff2b0f
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 #ff2b0f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ff2b0f-c4a59c-62cba4-2d271f-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