Color

#37c0f6

#37c0f6
hex#37c0f6
rgbrgb(55, 192, 246)
hslhsl(197, 91%, 59%)
oklchoklch(0.759 0.136 229.7)
Closest name: deepskyblue (#00bfff)Relative luminance 0.4517

Tints & shades

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

Harmonies

Complementary

Open in tool →

#f66d37

#37f6cc · #3761f6

#f637c0 · #c0f637

Split-complementary

Open in tool →

#f63761 · #f6cc37

#cc37f6 · #f66d37 · #61f637

Contrast

#37c0f6 as textRatioAAAA largeAAAFix
Aaon white
2.09:1failfailfail
  • AA: use #087caa as the text (4.69:1)
  • AAA: use #065c7f as the text (7.38:1)
  • AA: or shift the background to #454545 (4.58:1)
  • AAA: or shift the background to #262626 (7.23:1)
Aaon black
10.03:1passpasspassPasses 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 #37c0f6 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#37c0f6 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #37c0f6
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 #37c0f6 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/37c0f6-9cb4c4-df4e6b-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