brandsweets

Color

#eff623

#eff623
hex#eff623
rgbrgb(239, 246, 35)
hslhsl(62, 92%, 55%)
oklchoklch(0.937 0.201 111.8)
Closest name: Banana Bandanna (#f8f739)Relative luminance 0.8438
Vivid
Open in palette toolCheck contrast

Tints & shades

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

Harmonies

Complementary

Open in tool →
eff6232a23f6

#2a23f6

Analogous

Open in tool →
eff623f6932385f623

#f69323 · #85f623

Triadic

Open in tool →
eff62323eff6f623ef

#23eff6 · #f623ef

Split-complementary

Open in tool →
eff6232385f69323f6

#2385f6 · #9323f6

Tetradic

Open in tool →
eff62323f6932a23f6f62385

#23f693 · #2a23f6 · #f62385

Contrast

#eff623 as textRatioAAAA largeAAAFix
Aaon white
1.17:1failfailfail
  • AA: use #767a05 as the text (4.61:1)
  • AAA: use #555804 as the text (7.54:1)
  • AA: or shift the background to #6b6b6b (4.54:1)
  • AAA: or shift the background to #4d4d4d (7.2:1)
Aaon black
17.88:1passpasspassPasses 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 #eff623 as the background.

Brands using this color

mcpConnect your agent — build around #eff623
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 #eff623 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/eff623-babea2-4e8fdf-272d1f-f1eee9?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