Color

#37cfd2

#37cfd2
hex#37cfd2
rgbrgb(55, 207, 210)
hslhsl(181, 63%, 52%)
oklchoklch(0.78 0.121 197)
Closest name: darkturquoise (#00ced1)Relative luminance 0.5009

Tints & shades

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

Harmonies

Complementary

Open in tool →

#d23a37

#37d287 · #3782d2

#d237cf · #cfd237

Split-complementary

Open in tool →

#d23782 · #d28737

#8737d2 · #d23a37 · #82d237

Contrast

#37cfd2 as textRatioAAAA largeAAAFix
Aaon white
1.91:1failfailfail
  • AA: use #1e8385 as the text (4.53:1)
  • AAA: use #176264 as the text (7.08:1)
  • AA: or shift the background to #4a4a4a (4.65:1)
  • AAA: or shift the background to #2e2e2e (7.12:1)
Aaon black
11.02:1passpasspassPasses 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 #37cfd2 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

#37cfd2 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #37cfd2
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

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

analyze #37cfd2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/37cfd2-a2babe-d45992-1f272d-e9f1ed?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