Color

#64d331

#64d331
hex#64d331
rgbrgb(100, 211, 49)
hslhsl(101, 65%, 51%)
oklchoklch(0.772 0.218 138.1)
Closest name: Blinking Terminal (#66cc00)Relative luminance 0.4952

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a031d3

#b5d331 · #31d34f

#3164d3 · #d33164

Split-complementary

Open in tool →

#4f31d3 · #d331b5

#31b5d3 · #a031d3 · #d34f31

Contrast

#64d331 as textRatioAAAA largeAAAFix
Aaon white
1.93:1failfailfail
  • AA: use #3c821c as the text (4.77:1)
  • AAA: use #2f6515 as the text (7.02:1)
  • AA: or shift the background to #4a4a4a (4.6:1)
  • AAA: or shift the background to #2e2e2e (7.05:1)
Aaon black
10.9:1passpasspassPasses 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 #64d331 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 #64d331
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 #64d331 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/64d331-a7bea2-6b4edf-1f2d21-eff1e9?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