Color

#a5cc19

#a5cc19
hex#a5cc19
rgbrgb(165, 204, 25)
hslhsl(73, 78%, 45%)
oklchoklch(0.789 0.188 122.7)
Closest name: yellowgreen (#9acd32)Relative luminance 0.5126

Colors that go with #a5cc19

Taupe, Plum and Dark Olive Green 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 →

#4019cc

#cc9a19 · #4ccc19

#19a5cc · #cc19a5

Split-complementary

Open in tool →

#194ccc · #9a19cc

#19cc9a · #4019cc · #cc194c

Contrast

#a5cc19 as textRatioAAAA largeAAAFix
Aaon white
1.87:1failfailfail
  • AA: use #677f10 as the text (4.55:1)
  • AAA: use #4d5f0c as the text (7.1:1)
  • AA: or shift the background to #4d4d4d (4.53:1)
  • AAA: or shift the background to #303030 (7.07:1)
Aaon black
11.25:1passpasspassPasses 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 #a5cc19 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 #a5cc19
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 #a5cc19 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a5cc19-b5bea2-4e75df-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