Color

#37a993

#37a993
hex#37a993
rgbrgb(55, 169, 147)
hslhsl(168, 51%, 44%)
oklchoklch(0.666 0.106 177.3)
Closest name: Hole in One (#4aae97)Relative luminance 0.3129

Colors that go with #37a993

Charcoal, Copper and Cornflower Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Real palettes that use #37a993

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a9374e

#37a959 · #3787a9

#9337a9 · #a99337

Split-complementary

Open in tool →

#a93787 · #a95937

#5937a9 · #a9374e · #87a937

Contrast

#37a993 as textRatioAAAA largeAAAFix
Aaon white
2.89:1failfailfail
  • AA: use #2a8371 as the text (4.58:1)
  • AAA: use #1f6053 as the text (7.35:1)
  • AA: or shift the background to #303030 (4.56:1)
  • AAA: or shift the background to #050505 (7.05:1)
Aaon black
7.26:1passpasspassPasses 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 #37a993 as the background.

Brands using this color

mcpConnect your agent — build around #37a993
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #37a993 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/37a993-a2bebc-d459ad-1f2a2d-e9f1ec?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