Color

#3ca8d3

#3ca8d3
hex#3ca8d3
rgbrgb(60, 168, 211)
hslhsl(197, 63%, 53%)
oklchoklch(0.689 0.115 228.7)
Closest name: Cousteau (#55a9d6)Relative luminance 0.3367

Colors that go with #3ca8d3

Charcoal, Terracotta and Amber 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 →

#d3663c

#3cd3b2 · #3c5cd3

#d33ca8 · #a8d33c

Split-complementary

Open in tool →

#d33c5c · #d3b23c

#b23cd3 · #d3663c · #5cd33c

Contrast

#3ca8d3 as textRatioAAAA largeAAAFix
Aaon white
2.72:1failfailfail
  • AA: use #257fa2 as the text (4.53:1)
  • AAA: use #1b5e79 as the text (7.18:1)
  • AA: or shift the background to #333333 (4.65:1)
  • AAA: or shift the background to #0f0f0f (7.06:1)
Aaon black
7.73:1passpasspassPasses 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 #3ca8d3 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

#3ca8d3 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3ca8d3
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 #3ca8d3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3ca8d3-9cb4c4-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