Color

#a3ce40

#a3ce40
hex#a3ce40
rgbrgb(163, 206, 64)
hslhsl(78, 59%, 53%)
oklchoklch(0.794 0.172 124.9)
Closest name: yellowgreen (#9acd32)Relative luminance 0.523

Tints & shades

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

Harmonies

Complementary

Open in tool →

#6b40ce

#ceb240 · #5dce40

#40a3ce · #ce40a3

Split-complementary

Open in tool →

#405dce · #b240ce

#40ceb2 · #6b40ce · #ce405d

Contrast

#a3ce40 as textRatioAAAA largeAAAFix
Aaon white
1.83:1failfailfail
  • AA: use #627e20 as the text (4.64:1)
  • AAA: use #485d18 as the text (7.36:1)
  • AA: or shift the background to #4d4d4d (4.61:1)
  • AAA: or shift the background to #303030 (7.2:1)
Aaon black
11.46:1passpasspassPasses 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 #a3ce40 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 #a3ce40
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 #a3ce40 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a3ce40-b2bea2-4e69df-232d1f-f1f0e9?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