Color

#a5d01b

#a5d01b
hex#a5d01b
rgbrgb(165, 208, 27)
hslhsl(74, 77%, 46%)
oklchoklch(0.798 0.191 123.6)
Closest name: yellowgreen (#9acd32)Relative luminance 0.5319

Colors that go with #a5d01b

Taupe, Plum and 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 →

#451bd0

#d09f1b · #4bd01b

#1ba5d0 · #d01ba5

Split-complementary

Open in tool →

#1b4bd0 · #9f1bd0

#1bd09f · #451bd0 · #d01b4b

Contrast

#a5d01b as textRatioAAAA largeAAAFix
Aaon white
1.8:1failfailfail
  • AA: use #657e10 as the text (4.62:1)
  • AAA: use #4c5f0c as the text (7.12:1)
  • AA: or shift the background to #4f4f4f (4.54:1)
  • AAA: or shift the background to #333333 (7:1)
Aaon black
11.64:1passpasspassPasses 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 #a5d01b 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 #a5d01b
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 #a5d01b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a5d01b-b4bea2-4e72df-242d1f-f1efe9?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