Color

#37cd71

#37cd71
hex#37cd71
rgbrgb(55, 205, 113)
hslhsl(143, 60%, 51%)
oklchoklch(0.75 0.18 151.6)
Closest name: Battletoad (#11cc55)Relative luminance 0.4567

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cd3794

#49cd37 · #37cdbc

#7137cd · #cd7137

Split-complementary

Open in tool →

#bc37cd · #cd3749

#3749cd · #cd3794 · #cdbc37

Contrast

#37cd71 as textRatioAAAA largeAAAFix
Aaon white
2.07:1failfailfail
  • AA: use #228748 as the text (4.54:1)
  • AAA: use #1a6637 as the text (7:1)
  • AA: or shift the background to #454545 (4.63:1)
  • AAA: or shift the background to #292929 (7.02:1)
Aaon black
10.13:1passpasspassPasses 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 #37cd71 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 #37cd71
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 #37cd71 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/37cd71-a2beb0-c859d4-1f2d2b-eaf1e9?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