Color

#37ae91

#37ae91
hex#37ae91
rgbrgb(55, 174, 145)
hslhsl(165, 52%, 45%)
oklchoklch(0.678 0.113 173.1)
Closest name: Hole in One (#4aae97)Relative luminance 0.3313

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ae3755

#37ae55 · #3791ae

#9137ae · #ae9137

Split-complementary

Open in tool →

#ae3791 · #ae5537

#5537ae · #ae3755 · #91ae37

Contrast

#37ae91 as textRatioAAAA largeAAAFix
Aaon white
2.75:1failfailfail
  • AA: use #2a846d as the text (4.55:1)
  • AAA: use #1f6150 as the text (7.28:1)
  • AA: or shift the background to #333333 (4.59:1)
  • AAA: or shift the background to #0d0d0d (7.06:1)
Aaon black
7.63:1passpasspassPasses 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 #37ae91 as the background.

Brands using this color

mcpConnect your agent — build around #37ae91
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 #37ae91 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/37ae91-a2beba-d459b3-1f2b2d-e9f1eb?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