Color

#3cb7dd

#3cb7dd
hex#3cb7dd
rgbrgb(60, 183, 221)
hslhsl(194, 70%, 55%)
oklchoklch(0.728 0.118 222.9)
Closest name: Blue Martini (#52b4d3)Relative luminance 0.4005

Colors that go with #3cb7dd

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 →

#dd613c

#3cddb2 · #3c67dd

#dd3cb7 · #b7dd3c

Split-complementary

Open in tool →

#dd3c67 · #ddb23c

#b23cdd · #dd613c · #67dd3c

Contrast

#3cb7dd as textRatioAAAA largeAAAFix
Aaon white
2.33:1failfailfail
  • AA: use #1c7e9c as the text (4.65:1)
  • AAA: use #155f75 as the text (7.18:1)
  • AA: or shift the background to #3d3d3d (4.66:1)
  • AAA: or shift the background to #1f1f1f (7.07:1)
Aaon black
9.01:1passpasspassPasses 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 #3cb7dd as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#3cb7dd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3cb7dd
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 #3cb7dd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3cb7dd-9cb6c4-df4e72-1f242d-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