Color

#ff5b42

#ff5b42
hex#ff5b42
rgbrgb(255, 91, 66)
hslhsl(8, 100%, 63%)
oklchoklch(0.686 0.204 31.3)
Closest name: tomato (#ff6347)Relative luminance 0.2914

Tints & shades

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

Harmonies

Complementary

Open in tool →

#42e6ff

#ff4287 · #ffba42

#42ff5b · #5b42ff

Split-complementary

Open in tool →

#42ffba · #4287ff

#87ff42 · #42e6ff · #ba42ff

Contrast

#ff5b42 as textRatioAAAA largeAAAFix
Aaon white
3.08:1failpassfail
  • AA: use #e61f00 as the text (4.6:1)
  • AAA: use #ad1700 as the text (7.24:1)
  • AA: or shift the background to #2b2b2b (4.6:1)
Aaon black
6.83:1passpassfail
  • 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 #ff5b42 as the background.

Brands using this color

Fonts for this mood

#ff5b42 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #ff5b42
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 #ff5b42 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ff5b42-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