Color

#ff661f

#ff661f
hex#ff661f
rgbrgb(255, 102, 31)
hslhsl(19, 100%, 56%)
oklchoklch(0.697 0.201 41.2)
Closest name: Arancio (#ff7013)Relative luminance 0.3086

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1fb8ff

#ff1f48 · #ffd61f

#1fff66 · #661fff

Split-complementary

Open in tool →

#1fffd6 · #1f48ff

#48ff1f · #1fb8ff · #d61fff

Contrast

#ff661f as textRatioAAAA largeAAAFix
Aaon white
2.93:1failfailfail
  • AA: use #d14200 as the text (4.68:1)
  • AAA: use #9e3200 as the text (7.22:1)
  • AA: or shift the background to #303030 (4.51:1)
  • AAA: or shift the background to #030303 (7.04:1)
Aaon black
7.17:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #ff661f as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#ff661f reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #ff661f
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 #ff661f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ff661f-c4ad9c-62cbb9-2d2a1f-f1e9eb?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