# #dde5f3

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

## Values

- Hex: `#dde5f3`
- RGB: rgb(221, 229, 243)
- HSL: hsl(218, 48%, 91%)
- OKLCH: oklch(0.92 0.021 261.8)
- Relative luminance: 0.7788
- Nearest named color: Celestial Cathedral (#daeaf6, Δ 1.237) — https://brandsweets.com/colors/celestial-cathedral
- Moods: cool, light, clean, modern
- Page: https://brandsweets.com/colors/dde5f3

## Tints & shades

- Tints (toward white): #e1e8f4, #e1e8f4, #e5ebf6, #e8eef7, #ecf1f8, #ecf1f8, #f0f3fa, #f4f6fb, #f4f6fb, #f7f9fc
- Shades (toward black): #bbcbe7, #9db4dd, #7b9ad1, #5980c5, #406bb5, #345793, #284371, #1c2f4f, #111d31, #05090f

## Harmonies

- Complementary: #f3ebdd
- Analogous: #ddf0f3, #e0ddf3
- Triadic: #f3dde5, #e5f3dd
- Split-complementary: #f3e0dd, #f0f3dd
- Tetradic: #f3ddf0, #f3ebdd, #ddf3e0

## Colors that go with #dde5f3

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 #dde5f3 without the hard edge of pure #000. Seen in: Sweetgreen (https://brandsweets.com/colors/brands/sweetgreen-com), Paper & Pine (https://brandsweets.com/palettes/minimal#paper-and-pine), Alaska Airlines (https://brandsweets.com/colors/brands/alaskaair-com), Harbour (https://brandsweets.com/palettes/cool#harbour). — https://brandsweets.com/colors/charcoal
- **Amber** #ffbf00 [pool] — Amber is paired with #dde5f3 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), Ember (https://brandsweets.com/palettes/bold#ember), Binance (https://brandsweets.com/colors/brands/binance-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 47 real palettes, including Binance's brand system and Dropbox's brand system put Blue beside #dde5f3, as the accent. Seen in: Binance (https://brandsweets.com/colors/brands/binance-com), Dropbox (https://brandsweets.com/colors/brands/dropbox-com), Alaska Airlines (https://brandsweets.com/colors/brands/alaskaair-com), Cargo (https://brandsweets.com/colors/brands/cargo-site). — https://brandsweets.com/colors/blue
- **Blue Violet** #8a2be2 [pool] — Blue Violet is paired with #dde5f3 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 Blush put Blush Pink beside #dde5f3, as the accent. Seen in: Estate (https://brandsweets.com/palettes/luxury#estate), Blush (https://brandsweets.com/palettes/light#blush), Rain Garden (https://brandsweets.com/palettes/cool#rain-garden), Graphite Mono (https://brandsweets.com/palettes/neutral#graphite-mono). — https://brandsweets.com/colors/blush-pink
- **Brown** #a52a2a [pool] — 5 real palettes, including Velvet and Garnet put Brown beside #dde5f3, as the lead colour. Seen in: Velvet (https://brandsweets.com/palettes/luxury#velvet), Garnet (https://brandsweets.com/palettes/warm#garnet), Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke), Typewriter (https://brandsweets.com/palettes/editorial#typewriter). — https://brandsweets.com/colors/brown
- **Burgundy** #800020 [pool] — 5 real palettes, including Candlelight and Heinz's brand system put Burgundy beside #dde5f3, 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 #dde5f3 in 8 real palettes, including Velvet and Chalkboard, as the accent. Seen in: Velvet (https://brandsweets.com/palettes/luxury#velvet), Chalkboard (https://brandsweets.com/palettes/dark#chalkboard), Kiln (https://brandsweets.com/palettes/dark#kiln), Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar). — https://brandsweets.com/colors/burlywood

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

- On white (#ffffff): 1.27:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #4a75bf (4.58:1); AA: background → #666666 (4.53:1); AAA: text → #345793 (7.17:1); AAA: background → #474747 (7.33:1)
- On black (#000000): 16.58:1 — AA pass, AA-large pass, AAA pass

## Curated palettes containing it

- **Blueprint** (technical, cool, modern, dark) — #38bdf8, #818cf8, #fbbf24, #0f172a, #e2e8f0 — Cyan and indigo on navy is the developer-tool look; amber is the only warm note, so it always reads as 'attention'. — tool: https://brandsweets.com/palettes/new/38bdf8-818cf8-fbbf24-0f172a-e2e8f0 — collection: https://brandsweets.com/palettes/technical

## Fonts for this mood

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

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/dde5f3-9ca6c4-df644e-201f2d-e9f0f1?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: "#dde5f3" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.