Color

#c3d0ef

#c3d0ef
hex#c3d0ef
rgbrgb(195, 208, 239)
hslhsl(222, 58%, 85%)
oklchoklch(0.858 0.045 267.4)
Closest name: Frozen Periwinkle (#c9d1ef)Relative luminance 0.6295

Colors that go with #c3d0ef

Charcoal, Deep Sky Blue and Dark Khaki 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 →

#efe2c3

#c3e6ef · #cbc3ef

#efc3d0 · #d0efc3

Split-complementary

Open in tool →

#efcbc3 · #e6efc3

#efc3e6 · #efe2c3 · #c3efcb

Contrast

#c3d0ef as textRatioAAAA largeAAAFix
Aaon white
1.55:1failfailfail
  • AA: use #4a72cf as the text (4.57:1)
  • AAA: use #2e54ad as the text (7.03:1)
  • AA: or shift the background to #595959 (4.53:1)
  • AAA: or shift the background to #3d3d3d (7.03:1)
Aaon black
13.59:1passpasspassPasses 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 #c3d0ef as the background.

Brands using this color

Fonts for this mood

#c3d0ef reads as cool, light, clean. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #c3d0ef
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 #c3d0ef and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/c3d0ef-9ca3c4-df6e4e-211f2d-e9eff1?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