Color

#efd53e

#efd53e
hex#efd53e
rgbrgb(239, 213, 62)
hslhsl(51, 85%, 59%)
oklchoklch(0.87 0.162 99)
Closest name: Banana Drama (#f1d548)Relative luminance 0.6629

Colors that go with #efd53e

Charcoal, Deep Sky Blue and Lilac lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3e58ef

#ef7c3e · #b1ef3e

#3eefd5 · #d53eef

Split-complementary

Open in tool →

#3eb1ef · #7c3eef

#3eef7c · #3e58ef · #ef3eb1

Contrast

#efd53e as textRatioAAAA largeAAAFix
Aaon white
1.47:1failfailfail
  • AA: use #89760b as the text (4.51:1)
  • AAA: use #635508 as the text (7.41:1)
  • AA: or shift the background to #5c5c5c (4.54:1)
  • AAA: or shift the background to #404040 (7.04:1)
Aaon black
14.26:1passpasspassPasses 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 #efd53e as the background.

Brands using this color

Fonts for this mood

#efd53e reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #efd53e
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

›analyze #efd53e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/efd53e-c4c29c-4eaadf-292d1f-f1ece9?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