Color

#b5c520

#b5c520
hex#b5c520
rgbrgb(181, 197, 32)
hslhsl(66, 72%, 45%)
oklchoklch(0.785 0.171 115.6)
Closest name: Celery (#b4c04c)Relative luminance 0.4986

Colors that go with #b5c520

Cornflower Blue, Deep Sky Blue and Charcoal 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 →

#3120c5

#c58320 · #62c520

#20b5c5 · #c520b5

Split-complementary

Open in tool →

#2062c5 · #8320c5

#20c583 · #3120c5 · #c52062

Contrast

#b5c520 as textRatioAAAA largeAAAFix
Aaon white
1.91:1failfailfail
  • AA: use #717b14 as the text (4.62:1)
  • AAA: use #545c0f as the text (7.2:1)
  • AA: or shift the background to #4a4a4a (4.63:1)
  • AAA: or shift the background to #2e2e2e (7.1:1)
Aaon black
10.97:1passpasspassPasses 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 #b5c520 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

mcpConnect your agent — build around #b5c520
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 #b5c520 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b5c520-b8bea2-4e86df-262d1f-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