Color

#def4fd

#def4fd
hex#def4fd
rgbrgb(222, 244, 253)
hslhsl(197, 89%, 93%)
oklchoklch(0.954 0.026 224.2)
Closest name: Diamond White (#e2eff3)Relative luminance 0.8732

Colors that go with #def4fd

Charcoal, Amber 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.

Real palettes that use #def4fd

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#fde6dd

#ddfdf6 · #dde4fd

#fdddf4 · #f4fddd

Split-complementary

Open in tool →

#fddde4 · #fdf6dd

#f6ddfd · #fde6dd · #e4fddd

Contrast

#def4fd as textRatioAAAA largeAAAFix
Aaon white
1.14:1failfailfail
  • AA: use #0a7fae as the text (4.51:1)
  • AAA: use #085f82 as the text (7.07:1)
  • AA: or shift the background to #6b6b6b (4.69:1)
  • AAA: or shift the background to #4f4f4f (7.2:1)
Aaon black
18.46:1passpasspassPasses 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 #def4fd as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#def4fd reads as cool, vivid, light. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #def4fd
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 #def4fd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/def4fd-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