# #def3fc

A color — cool, vivid, light, technical, modern, clean. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#def3fc`
- RGB: rgb(222, 243, 252)
- HSL: hsl(198, 83%, 93%)
- OKLCH: oklch(0.951 0.025 225.3)
- Relative luminance: 0.8666
- Nearest named color: Diamond White (#e2eff3, Δ 1.325) — https://brandsweets.com/colors/diamond-white
- Moods: cool, vivid, light, technical, modern, clean
- Page: https://brandsweets.com/colors/def3fc

## Tints & shades

- Tints (toward white): #e3f5fc, #e3f5fc, #e8f6fd, #e8f6fd, #ecf8fd, #ecf8fd, #f1fafe, #f1fafe, #f6fcfe, #f6fcfe
- Shades (toward black): #b4e4f8, #8ad4f4, #60c5f0, #36b6ec, #15a6e5, #1188bb, #0d6991, #0a4b67, #062c3d, #020e13

## Harmonies

- Complementary: #fce7de
- Analogous: #defcf6, #dee4fc
- Triadic: #fcdef3, #f3fcde
- Split-complementary: #fcdee4, #fcf6de
- Tetradic: #f6defc, #fce7de, #e4fcde

## Colors that go with #def3fc

Named partners (harmony on the OKLCH wheel, co-occurrence in curated palettes and brand systems, and the neutrals that carry it), best first:

- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black that reads cleanly against #def3fc without the hard edge of pure #000. Seen in: Alaska Airlines (https://brandsweets.com/colors/brands/alaskaair-com), Paper & Pine (https://brandsweets.com/palettes/minimal#paper-and-pine), Harbour (https://brandsweets.com/palettes/cool#harbour), Tide Pool (https://brandsweets.com/palettes/cool#tide-pool). — https://brandsweets.com/colors/charcoal
- **Amber** #ffbf00 [pool] — Amber is paired with #def3fc in 21 real palettes, including Blueprint and Trailhead, as the accent. Seen in: Blueprint (https://brandsweets.com/palettes/technical#blueprint), Trailhead (https://brandsweets.com/palettes/warm#trailhead), Binance (https://brandsweets.com/colors/brands/binance-com), Ember (https://brandsweets.com/palettes/bold#ember). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 47 real palettes, including Dropbox's brand system and Alaska Airlines's brand system put Blue beside #def3fc, as the accent. Seen in: Dropbox (https://brandsweets.com/colors/brands/dropbox-com), Alaska Airlines (https://brandsweets.com/colors/brands/alaskaair-com), Binance (https://brandsweets.com/colors/brands/binance-com), Cargo (https://brandsweets.com/colors/brands/cargo-site). — https://brandsweets.com/colors/blue
- **Blue Violet** #8a2be2 [pool] — Blue Violet is paired with #def3fc in 12 real palettes, including Gemstone and ClickUp's brand system, as the supporting colour. Seen in: Gemstone (https://brandsweets.com/palettes/vivid#gemstone), ClickUp (https://brandsweets.com/colors/brands/clickup-com), Fly.io (https://brandsweets.com/colors/brands/fly-io), Prepare your taste buds... (https://brandsweets.com/colors/brands/grubhub-com). — https://brandsweets.com/colors/blueviolet
- **Blush Pink** #e8b4b8 [pool] — 7 real palettes, including Estate and Rain Garden put Blush Pink beside #def3fc, as the accent. Seen in: Estate (https://brandsweets.com/palettes/luxury#estate), Rain Garden (https://brandsweets.com/palettes/cool#rain-garden), Blush (https://brandsweets.com/palettes/light#blush), Graphite Mono (https://brandsweets.com/palettes/neutral#graphite-mono). — https://brandsweets.com/colors/blush-pink
- **Brown** #a52a2a [pool] — 5 real palettes, including Velvet and Typewriter put Brown beside #def3fc, as the lead colour. Seen in: Velvet (https://brandsweets.com/palettes/luxury#velvet), Typewriter (https://brandsweets.com/palettes/editorial#typewriter), Garnet (https://brandsweets.com/palettes/warm#garnet), Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke). — https://brandsweets.com/colors/brown
- **Burgundy** #800020 [pool] — 5 real palettes, including Candlelight and Heinz's brand system put Burgundy beside #def3fc, as the lead colour. Seen in: Candlelight (https://brandsweets.com/palettes/warm#candlelight), Heinz (https://brandsweets.com/colors/brands/heinz-com), Mailchimp (https://brandsweets.com/colors/brands/mailchimp-com), Qatar Airways (https://brandsweets.com/colors/brands/qatarairways-com). — https://brandsweets.com/colors/burgundy
- **Burlywood** #deb887 [pool] — Burlywood is paired with #def3fc in 8 real palettes, including Chalkboard and Velvet, as the lead colour. Seen in: Chalkboard (https://brandsweets.com/palettes/dark#chalkboard), Velvet (https://brandsweets.com/palettes/luxury#velvet), Coastal (https://brandsweets.com/palettes/cool#coastal), Kiln (https://brandsweets.com/palettes/dark#kiln). — https://brandsweets.com/colors/burlywood

## Contrast (WCAG 2.x, as text)

- On white (#ffffff): 1.15:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #107ead (4.56:1); AA: background → #6b6b6b (4.65:1); AAA: text → #0c5f83 (7.05:1); AAA: background → #4f4f4f (7.15:1)
- On black (#000000): 18.33:1 — AA pass, AA-large pass, AAA pass

## Curated palettes containing it

- **Terminal** (technical, dark, modern) — #3fb950, #58a6ff, #f778ba, #0b0f14, #e6edf3 — Green for success, blue for links, pink for emphasis — the dark-mode developer family, tuned to sit on near-black without glare. — tool: https://brandsweets.com/palettes/new/3fb950-58a6ff-f778ba-0b0f14-e6edf3 — collection: https://brandsweets.com/palettes/technical
- **Ledger Dark** (dark, luxury, technical) — #c9a227, #7c8aa5, #34d399, #0c1222, #e8edf5 — Gold on midnight is the private-banking cue; the mint accent keeps it from feeling old-money stuffy. — tool: https://brandsweets.com/palettes/new/c9a227-7c8aa5-34d399-0c1222-e8edf5 — collection: https://brandsweets.com/palettes/dark
- **Deep Water** (ocean, dark, cool, luxury) — #00b4d8, #0077b6, #caf0f8, #03045e, #e8f6fb — Cyan and mid-blue on abyss navy with a foam highlight — the ocean at depth; the darker the surface, the brighter the water. — tool: https://brandsweets.com/palettes/new/00b4d8-0077b6-caf0f8-03045e-e8f6fb — collection: https://brandsweets.com/palettes/ocean

## Fonts for this mood

- technical: https://brandsweets.com/fonts/mood/technical
- modern: https://brandsweets.com/fonts/mood/modern
- clean: https://brandsweets.com/fonts/mood/clean

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/def3fc-9cb3c4-df4e69-1f232d-e9f1f0?lock=0&style=vibrant
(Humans lock/regenerate in the tool; the URL is the state — read `lock=` back to see what they kept.)

## Connect an agent

Point any MCP client at the BrandSweets colors endpoint for the same engine:

- Endpoint: https://mcp.brandsweets.com/colors/mcp
- Tools: `analyze_color` (e.g. `analyze_color({ color: "#def3fc" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.