Color

#efe015

#efe015
hex#efe015
rgbrgb(239, 224, 21)
hslhsl(56, 87%, 51%)
oklchoklch(0.891 0.186 104.6)
Closest name: Angel’s Trumpet (#f6dd34)Relative luminance 0.7172

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1524ef

#ef7415 · #91ef15

#15efe0 · #e015ef

Split-complementary

Open in tool →

#1591ef · #7415ef

#15ef74 · #1524ef · #ef1591

Contrast

#efe015 as textRatioAAAA largeAAAFix
Aaon white
1.37:1failfailfail
  • AA: use #7c7409 as the text (4.82:1)
  • AAA: use #5f5907 as the text (7.2:1)
  • AA: or shift the background to #616161 (4.53:1)
  • AAA: or shift the background to #454545 (7.01:1)
Aaon black
15.34:1passpasspassPasses 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 #efe015 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#efe015 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #efe015
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 #efe015 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/efe015-bdbea2-4e9edf-282d1f-f1ede9?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