Color

#ff3d1f

#ff3d1f
hex#ff3d1f
rgbrgb(255, 61, 31)
hslhsl(8, 100%, 56%)
oklchoklch(0.655 0.233 31.6)
Closest name: orangered (#ff4500)Relative luminance 0.247

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1fe1ff

#ff1f71 · #ffad1f

#1fff3d · #3d1fff

Split-complementary

Open in tool →

#1fffad · #1f71ff

#71ff1f · #1fe1ff · #ad1fff

Contrast

#ff3d1f as textRatioAAAA largeAAAFix
Aaon white
3.54:1failpassfail
  • AA: use #e61f00 as the text (4.6:1)
  • AAA: use #ad1700 as the text (7.24:1)
  • AA: or shift the background to #212121 (4.55:1)
Aaon black
5.94:1passpassfail
  • AAA: use #ff6047 as the text (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #ff3d1f as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#ff3d1f reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #ff3d1f
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 #ff3d1f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ff3d1f-c4a69c-62cba6-2d271f-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