Color

#a5d331

#a5d331
hex#a5d331
rgbrgb(165, 211, 49)
hslhsl(77, 65%, 51%)
oklchoklch(0.806 0.186 124.8)
Closest name: yellowgreen (#9acd32)Relative luminance 0.5481

Tints & shades

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

Harmonies

Complementary

Open in tool →

#5f31d3

#d3b031 · #54d331

#31a5d3 · #d331a5

Split-complementary

Open in tool →

#3154d3 · #b031d3

#31d3b0 · #5f31d3 · #d33154

Contrast

#a5d331 as textRatioAAAA largeAAAFix
Aaon white
1.76:1failfailfail
  • AA: use #627e1b as the text (4.65:1)
  • AAA: use #485d14 as the text (7.36:1)
  • AA: or shift the background to #4f4f4f (4.67:1)
  • AAA: or shift the background to #333333 (7.2:1)
Aaon black
11.96:1passpasspassPasses 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 #a5d331 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 #a5d331
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 #a5d331 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a5d331-b3bea2-4e6bdf-232d1f-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