Color

#3cb6e7

#3cb6e7
hex#3cb6e7
rgbrgb(60, 182, 231)
hslhsl(197, 78%, 57%)
oklchoklch(0.73 0.126 229.4)
Closest name: Blue Bikini (#00bbee)Relative luminance 0.4019

Colors that go with #3cb6e7

Charcoal, Amber and 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 →

#e76c3c

#3ce7c2 · #3c61e7

#e73cb6 · #b6e73c

Split-complementary

Open in tool →

#e73c61 · #e7c23c

#c23ce7 · #e76c3c · #61e73c

Contrast

#3cb6e7 as textRatioAAAA largeAAAFix
Aaon white
2.32:1failfailfail
  • AA: use #157ea8 as the text (4.58:1)
  • AAA: use #0f5c7b as the text (7.4:1)
  • AA: or shift the background to #3d3d3d (4.67:1)
  • AAA: or shift the background to #1f1f1f (7.09:1)
Aaon black
9.04:1passpasspassPasses 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 #3cb6e7 as the background.

Brands using this color

Fonts for this mood

#3cb6e7 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3cb6e7
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 #3cb6e7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3cb6e7-9cb4c4-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