Color

#ef6115

#ef6115
hex#ef6115
rgbrgb(239, 97, 21)
hslhsl(21, 87%, 51%)
oklchoklch(0.665 0.191 42.7)
Closest name: Basketball (#ee6730)Relative luminance 0.2695

Tints & shades

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

Harmonies

Complementary

Open in tool →

#15a3ef

#ef1536 · #efce15

#15ef61 · #6115ef

Split-complementary

Open in tool →

#15efce · #1536ef

#36ef15 · #15a3ef · #ce15ef

Contrast

#ef6115 as textRatioAAAA largeAAAFix
Aaon white
3.29:1failpassfail
  • AA: use #c84f0e as the text (4.58:1)
  • AAA: use #943a0a as the text (7.32:1)
  • AA: or shift the background to #262626 (4.61:1)
Aaon black
6.39:1passpassfail
  • AAA: use #f0722d as the text (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #ef6115 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#ef6115 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #ef6115
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 #ef6115 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ef6115-c4af9c-62cbbd-2d2a1f-f1e9ea?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