Color

#37e1fb

#37e1fb
hex#37e1fb
rgbrgb(55, 225, 251)
hslhsl(188, 96%, 60%)
oklchoklch(0.838 0.135 210.6)
Closest name: Aqua (#0ff0fe)Relative luminance 0.6163

Colors that go with #37e1fb

Charcoal, Crimson and Dodger 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 #37e1fb

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fb5137

#37fbb3 · #377ffb

#fb37e1 · #e1fb37

Split-complementary

Open in tool →

#fb377f · #fbb337

#b337fb · #fb5137 · #7ffb37

Contrast

#37e1fb as textRatioAAAA largeAAAFix
Aaon white
1.58:1failfailfail
  • AA: use #038296 as the text (4.53:1)
  • AAA: use #02606e as the text (7.24:1)
  • AA: or shift the background to #575757 (4.59:1)
  • AAA: or shift the background to #3b3b3b (7.11:1)
Aaon black
13.33:1passpasspassPasses 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 #37e1fb as the background.

Brands using this color

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

Palettes built around it

Fonts for this mood

#37e1fb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #37e1fb
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 #37e1fb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/37e1fb-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