Color

#efde57

#efde57
hex#efde57
rgbrgb(239, 222, 87)
hslhsl(53, 83%, 64%)
oklchoklch(0.89 0.153 102.1)
Closest name: Angel’s Trumpet (#f6dd34)Relative luminance 0.7128

Colors that go with #efde57

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 →

#5769ef

#ef9157 · #b5ef57

#57efde · #de57ef

Split-complementary

Open in tool →

#57b5ef · #9157ef

#57ef91 · #5769ef · #ef57b5

Contrast

#efde57 as textRatioAAAA largeAAAFix
Aaon white
1.38:1failfailfail
  • AA: use #83750c as the text (4.65:1)
  • AAA: use #625809 as the text (7.19:1)
  • AA: or shift the background to #5e5e5e (4.71:1)
  • AAA: or shift the background to #424242 (7.3:1)
Aaon black
15.26:1passpasspassPasses 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 #efde57 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

#efde57 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #efde57
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 #efde57 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/efde57-c4c49c-4ea5df-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