Color

#37d3eb

#37d3eb
hex#37d3eb
rgbrgb(55, 211, 235)
hslhsl(188, 82%, 57%)
oklchoklch(0.799 0.127 210.5)
Closest name: darkturquoise (#00ced1)Relative luminance 0.534

Colors that go with #37d3eb

Charcoal, Taupe and Salmon 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#eb4f37

#37eba9 · #3779eb

#eb37d3 · #d3eb37

Split-complementary

Open in tool →

#eb3779 · #eba937

#a937eb · #eb4f37 · #79eb37

Contrast

#37d3eb as textRatioAAAA largeAAAFix
Aaon white
1.8:1failfailfail
  • AA: use #0e7f90 as the text (4.71:1)
  • AAA: use #0b626f as the text (7.02:1)
  • AA: or shift the background to #4f4f4f (4.56:1)
  • AAA: or shift the background to #333333 (7.03:1)
Aaon black
11.68:1passpasspassPasses 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 #37d3eb as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#37d3eb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #37d3eb
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 #37d3eb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/37d3eb-a2b7be-df4e81-1f252d-e9f1ee?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