Color

#ff370f

#ff370f
hex#ff370f
rgbrgb(255, 55, 15)
hslhsl(10, 100%, 53%)
oklchoklch(0.649 0.238 32.3)
Closest name: orangered (#ff4500)Relative luminance 0.2403

Tints & shades

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

Harmonies

Complementary

Open in tool →

#0fd7ff

#ff0f5f · #ffaf0f

#0fff37 · #370fff

Split-complementary

Open in tool →

#0fffaf · #0f5fff

#5fff0f · #0fd7ff · #af0fff

Contrast

#ff370f as textRatioAAAA largeAAAFix
Aaon white
3.62:1failpassfail
  • AA: use #e62600 as the text (4.52:1)
  • AAA: use #ad1d00 as the text (7.11:1)
  • AA: or shift the background to #1f1f1f (4.56:1)
Aaon black
5.81:1passpassfail
  • 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 #ff370f as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#ff370f reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #ff370f
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 #ff370f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ff370f-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