Color

#c3eff8

#c3eff8
hex#c3eff8
rgbrgb(195, 239, 248)
hslhsl(190, 79%, 87%)
oklchoklch(0.924 0.047 211.5)
Closest name: Gentle Cold (#c3ece9)Relative luminance 0.8011

Colors that go with #c3eff8

Charcoal, Deep Sky Blue and Light Coral 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 →

#f8ccc4

#c4f8e7 · #c4d5f8

#f8c4ef · #eff8c4

Split-complementary

Open in tool →

#f8c4d5 · #f8e7c4

#e7c4f8 · #f8ccc4 · #d5f8c4

Contrast

#c3eff8 as textRatioAAAA largeAAAFix
Aaon white
1.23:1failfailfail
  • AA: use #128097 as the text (4.6:1)
  • AAA: use #0d6172 as the text (7.07:1)
  • AA: or shift the background to #666666 (4.65:1)
  • AAA: or shift the background to #4a4a4a (7.18:1)
Aaon black
17.02:1passpasspassPasses 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 #c3eff8 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#c3eff8 reads as cool, vivid, light. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #c3eff8
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 #c3eff8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/c3eff8-a2b6be-df4e7c-1f252d-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