# #d1d9ef

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

## Values

- Hex: `#d1d9ef`
- RGB: rgb(209, 217, 239)
- HSL: hsl(224, 48%, 88%)
- OKLCH: oklch(0.886 0.031 269.8)
- Relative luminance: 0.6941
- Nearest named color: Fly a Kite (#c8daf5, Δ 1.311) — https://brandsweets.com/colors/fly-a-kite
- Moods: cool, light, clean, modern
- Page: https://brandsweets.com/colors/d1d9ef

## Tints & shades

- Tints (toward white): #d5ddf0, #d9e0f2, #dde3f3, #e1e6f4, #e5e9f6, #e8ecf7, #eceff8, #f0f3fa, #f4f6fb, #f7f9fc
- Shades (toward black): #b4c1e4, #92a4d9, #738cce, #516fc2, #3d5bae, #324b8f, #26396d, #1c2a4f, #10182d, #05080f

## Harmonies

- Complementary: #efe7d2
- Analogous: #d2e8ef, #d9d2ef
- Triadic: #efd2da, #daefd2
- Split-complementary: #efd9d2, #e8efd2
- Tetradic: #efd2e8, #efe7d2, #d2efd9

## Colors that go with #d1d9ef

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 for #d1d9ef: softer than #000 and cool enough to feel like part of the same palette. Seen in: Sweetgreen (https://brandsweets.com/colors/brands/sweetgreen-com), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember), Dusty Blue (https://brandsweets.com/palettes/cool#dusty-blue), Boeing (https://brandsweets.com/colors/brands/boeing-com). — https://brandsweets.com/colors/charcoal
- **Emerald Green** #50c878 [harmony, pool: triadic] — Emerald Green completes a triad with #d1d9ef — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Ledger Dark (https://brandsweets.com/palettes/dark#ledger-dark), Playground (https://brandsweets.com/palettes/bold#playground), Meadow (https://brandsweets.com/palettes/light#meadow), Chime (https://brandsweets.com/colors/brands/chime-com). — https://brandsweets.com/colors/emerald-green
- **Lilac** #c8a2c8 [harmony, pool: analogous] — Lilac is #d1d9ef's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: First Snow (https://brandsweets.com/palettes/cool#first-snow), Crypto.com (https://brandsweets.com/colors/brands/crypto-com), Lavender Milk (https://brandsweets.com/palettes/light#lavender-milk), Midnight Luxe (https://brandsweets.com/palettes/luxury#midnight-luxe). — https://brandsweets.com/colors/lilac
- **Sand** #c2b280 [harmony, pool: complementary] — Sand sits directly opposite #d1d9ef on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Bramble (https://brandsweets.com/palettes/muted#bramble), Greige (https://brandsweets.com/palettes/neutral#greige), Sonos (https://brandsweets.com/colors/brands/sonos-com), Garden Wedding (https://brandsweets.com/palettes/light#garden-wedding). — https://brandsweets.com/colors/sand
- **Amber** #ffbf00 [pool] — Amber is paired with #d1d9ef 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 Uber's brand system and Binance's brand system put Blue beside #d1d9ef, as the accent. Seen in: Uber (https://brandsweets.com/colors/brands/uber-com), 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). — https://brandsweets.com/colors/blue
- **Blue Violet** #8a2be2 [pool] — Blue Violet is paired with #d1d9ef 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
- **Brown** #a52a2a [pool] — 5 real palettes, including Velvet and Woodsmoke put Brown beside #d1d9ef, as the lead colour. Seen in: Velvet (https://brandsweets.com/palettes/luxury#velvet), Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke), Garnet (https://brandsweets.com/palettes/warm#garnet), Typewriter (https://brandsweets.com/palettes/editorial#typewriter). — https://brandsweets.com/colors/brown

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

- On white (#ffffff): 1.41:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #5573c3 (4.54:1); AA: background → #5e5e5e (4.6:1); AAA: text → #3955a2 (7.01:1); AAA: background → #424242 (7.12:1)
- On black (#000000): 14.88:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Nikon** — accent #cddcf2 (Δ 0.847) — https://brandsweets.com/colors/brands/nikon-com
- **Opera** — secondary #d0dbe3 (Δ 1.938) — https://brandsweets.com/colors/brands/opera-com

## 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/d1d9ef-9ca2c4-df724e-221f2d-e9eff1?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: "#d1d9ef" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.