brandsweets

Color

#efef34

#efef34
hex#efef34
rgbrgb(239, 239, 52)
hslhsl(60, 85%, 57%)
oklchoklch(0.923 0.189 109.6)
Closest name: Banana Bombshell (#f7e82e)Relative luminance 0.8033
Vivid
Open in palette toolCheck contrast

Tints & shades

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

Harmonies

Complementary

Open in tool →
efef343434ef

#3434ef

Analogous

Open in tool →
efef34ef913491ef34

#ef9134 · #91ef34

Triadic

Open in tool →
efef3434efefef34ef

#34efef · #ef34ef

Split-complementary

Open in tool →
efef343491ef9134ef

#3491ef · #9134ef

Tetradic

Open in tool →
efef3434ef913434efef3491

#34ef91 · #3434ef · #ef3491

Contrast

#efef34 as textRatioAAAA largeAAAFix
Aaon white
1.23:1failfailfail
  • AA: use #76760a as the text (4.81:1)
  • AAA: use #5a5a07 as the text (7.24:1)
  • AA: or shift the background to #666666 (4.67:1)
  • AAA: or shift the background to #4a4a4a (7.2:1)
Aaon black
17.07:1passpasspassPasses 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 #efef34 as the background.

Brands using this color

mcpConnect your agent — build around #efef34
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 #efef34 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/efef34-bbbea2-4e94df-272d1f-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