Color

#efe70b

#efe70b
hex#efe70b
rgbrgb(239, 231, 11)
hslhsl(58, 91%, 49%)
oklchoklch(0.905 0.193 107.1)
Closest name: Banana Bombshell (#f7e82e)Relative luminance 0.7553

Colors that go with #efe70b

Charcoal, Lilac and Cornflower Blue 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 →

#0b13ef

#ef750b · #85ef0b

#0befe7 · #e70bef

Split-complementary

Open in tool →

#0b85ef · #750bef

#0bef75 · #0b13ef · #ef0b85

Contrast

#efe70b as textRatioAAAA largeAAAFix
Aaon white
1.3:1failfailfail
  • AA: use #7a7606 as the text (4.75:1)
  • AAA: use #5d5a04 as the text (7.17:1)
  • AA: or shift the background to #636363 (4.61:1)
  • AAA: or shift the background to #474747 (7.13:1)
Aaon black
16.11:1passpasspassPasses 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 #efe70b 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

#efe70b reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #efe70b
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 #efe70b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/efe70b-bcbea2-4e99df-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