Color

#c3ccf3

#c3ccf3
hex#c3ccf3
rgbrgb(195, 204, 243)
hslhsl(229, 67%, 86%)
oklchoklch(0.851 0.055 275)
Closest name: Frozen Periwinkle (#c9d1ef)Relative luminance 0.6126

Colors that go with #c3ccf3

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 →

#f3eac3

#c3e4f3 · #d3c3f3

#f3c3cc · #ccf3c3

Split-complementary

Open in tool →

#f3d3c3 · #e4f3c3

#f3c3e4 · #f3eac3 · #c3f3d3

Contrast

#c3ccf3 as textRatioAAAA largeAAAFix
Aaon white
1.58:1failfailfail
  • AA: use #556edd as the text (4.51:1)
  • AAA: use #2948d1 as the text (7.14:1)
  • AA: or shift the background to #575757 (4.56:1)
  • AAA: or shift the background to #3b3b3b (7.07:1)
Aaon black
13.25:1passpasspassPasses 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 #c3ccf3 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

#c3ccf3 reads as cool, vivid, light. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #c3ccf3
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 #c3ccf3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/c3ccf3-9c9fc4-df7e4e-231f2d-e9eef1?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