Color

#37add7

#37add7
hex#37add7
rgbrgb(55, 173, 215)
hslhsl(196, 67%, 53%)
oklchoklch(0.701 0.118 226.5)
Closest name: Aquarius (#2db0ce)Relative luminance 0.3561

Colors that go with #37add7

Charcoal, Amber and Dark Orange 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 →

#d76237

#37d7b2 · #375cd7

#d737ad · #add737

Split-complementary

Open in tool →

#d7375c · #d7b237

#b237d7 · #d76237 · #5cd737

Contrast

#37add7 as textRatioAAAA largeAAAFix
Aaon white
2.59:1failfailfail
  • AA: use #207fa2 as the text (4.55:1)
  • AAA: use #185e77 as the text (7.23:1)
  • AA: or shift the background to #383838 (4.53:1)
  • AAA: or shift the background to #141414 (7.12:1)
Aaon black
8.12:1passpasspassPasses 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 #37add7 as the background.

Brands using this color

Fonts for this mood

#37add7 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #37add7
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 #37add7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/37add7-9cb5c4-df4e6e-1f232d-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