Color

#37c4eb

#37c4eb
hex#37c4eb
rgbrgb(55, 196, 235)
hslhsl(193, 82%, 57%)
oklchoklch(0.764 0.127 221.2)
Closest name: Blue Bikini (#00bbee)Relative luminance 0.4629

Colors that go with #37c4eb

Charcoal, Denim 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#eb5e37

#37ebb8 · #376aeb

#eb37c4 · #c4eb37

Split-complementary

Open in tool →

#eb376a · #ebb837

#b837eb · #eb5e37 · #6aeb37

Contrast

#37c4eb as textRatioAAAA largeAAAFix
Aaon white
2.05:1failfailfail
  • AA: use #107f9e as the text (4.61:1)
  • AAA: use #0b5d74 as the text (7.41:1)
  • AA: or shift the background to #474747 (4.54:1)
  • AAA: or shift the background to #292929 (7.11:1)
Aaon black
10.26:1passpasspassPasses 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 #37c4eb as the background.

Brands using this color

Fonts for this mood

#37c4eb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #37c4eb
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 #37c4eb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/37c4eb-a2b5be-df4e75-1f242d-e9f1ef?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