Color

#a3c5ff

#a3c5ff
hex#a3c5ff
rgbrgb(163, 197, 255)
hslhsl(218, 100%, 82%)
oklchoklch(0.82 0.09 260.9)
Closest name: Baby Blue (#a2cffe)Relative luminance 0.5494

Colors that go with #a3c5ff

Charcoal, Deep Sky Blue 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 →

#ffdda3

#a3f3ff · #afa3ff

#ffa3c5 · #c5ffa3

Split-complementary

Open in tool →

#ffafa3 · #f3ffa3

#ffa3f3 · #ffdda3 · #a3ffaf

Contrast

#a3c5ff as textRatioAAAA largeAAAFix
Aaon white
1.75:1failfailfail
  • AA: use #146aff as the text (4.63:1)
  • AAA: use #004dd1 as the text (7.04:1)
  • AA: or shift the background to #4f4f4f (4.68:1)
  • AAA: or shift the background to #333333 (7.21:1)
Aaon black
11.99:1passpasspassPasses 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 #a3c5ff as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#a3c5ff reads as cool, vivid, light. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #a3c5ff
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 #a3c5ff and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a3c5ff-9ca6c4-df644e-201f2d-e9f0f1?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