# #cddef3

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

## Values

- Hex: `#cddef3`
- RGB: rgb(205, 222, 243)
- HSL: hsl(213, 61%, 88%)
- OKLCH: oklch(0.894 0.034 253.7)
- Relative luminance: 0.7169
- Nearest named color: Cold Shoulder (#d4e0ef, Δ 1.262) — https://brandsweets.com/colors/cold-shoulder
- Moods: cool, vivid, light, technical, modern, clean
- Page: https://brandsweets.com/colors/cddef3

## Tints & shades

- Tints (toward white): #d2e1f4, #d6e4f5, #dae7f6, #dee9f7, #e2ecf8, #e6eff9, #eaf1fa, #eff4fb, #f3f7fc, #f7fafd
- Shades (toward black): #adc9eb, #88b1e2, #679bda, #4283d1, #2e6ebd, #265b9c, #1d4577, #153256, #0c1d31, #040a10

## Harmonies

- Complementary: #f3e2ce
- Analogous: #cef1f3, #d0cef3
- Triadic: #f3cedf, #dff3ce
- Split-complementary: #f3d0ce, #f1f3ce
- Tetradic: #f3cef1, #f3e2ce, #cef3d0

## Colors that go with #cddef3

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 #cddef3: 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), Paper & Pine (https://brandsweets.com/palettes/minimal#paper-and-pine). — https://brandsweets.com/colors/charcoal
- **Deep Sky Blue** #00bfff [harmony, pool: analogous] — Deep Sky Blue is #cddef3's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Calendly (https://brandsweets.com/colors/brands/calendly-com), Mistral AI (https://brandsweets.com/colors/brands/mistral-ai), Blueprint (https://brandsweets.com/palettes/technical#blueprint), Deep Water (https://brandsweets.com/palettes/dark#deep-water). — https://brandsweets.com/colors/deepskyblue
- **Emerald Green** #50c878 [harmony, pool: triadic] — Emerald Green completes a triad with #cddef3 — 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
- **Light Coral** #f08080 [harmony, pool: triadic] — Light Coral completes a triad with #cddef3 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Sentry (https://brandsweets.com/colors/brands/sentry-io), Blush (https://brandsweets.com/palettes/light#blush), Beach Hut (https://brandsweets.com/palettes/light#beach-hut), Meadow (https://brandsweets.com/palettes/light#meadow). — https://brandsweets.com/colors/lightcoral
- **Lilac** #c8a2c8 [harmony, pool: analogous] — Lilac is #cddef3'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 #cddef3 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 #cddef3 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 #cddef3, 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

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

- On white (#ffffff): 1.37:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #3175c9 (4.65:1); AA: background → #616161 (4.52:1); AAA: text → #255998 (7.09:1); AAA: background → #454545 (7:1)
- On black (#000000): 15.34:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Nikon** — accent #cddcf2 (Δ 0.501) — https://brandsweets.com/colors/brands/nikon-com
- **Calendly** — accent #c3dffe (Δ 1.813) — https://brandsweets.com/colors/brands/calendly-com

## 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/cddef3-9ca9c4-df584e-1f202d-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: "#cddef3" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.