# #c5d9fc

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

## Values

- Hex: `#c5d9fc`
- RGB: rgb(197, 217, 252)
- HSL: hsl(218, 90%, 88%)
- OKLCH: oklch(0.882 0.053 261.7)
- Relative luminance: 0.6852
- Nearest named color: Fly a Kite (#c8daf5, Δ 1.146) — https://brandsweets.com/colors/fly-a-kite
- Moods: cool, vivid, light, technical, modern, clean
- Page: https://brandsweets.com/colors/c5d9fc

## Tints & shades

- Tints (toward white): #cadcfc, #cfdffc, #d3e3fd, #d8e6fd, #dde9fd, #e2ecfd, #e7effe, #ecf2fe, #f0f6fe, #f5f9fe
- Shades (toward black): #9ec0fa, #72a3f8, #4c8af6, #206ef3, #0c59df, #0a4ab8, #07388d, #052966, #03173a, #010813

## Harmonies

- Complementary: #fce8c5
- Analogous: #c5f5fc, #ccc5fc
- Triadic: #fcc5d9, #d9fcc5
- Split-complementary: #fcccc5, #f5fcc5
- Tetradic: #fcc5f5, #fce8c5, #c5fccc

## Colors that go with #c5d9fc

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 #c5d9fc: softer than #000 and cool enough to feel like part of the same palette. Seen in: Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember), Dusty Blue (https://brandsweets.com/palettes/cool#dusty-blue), Sweetgreen (https://brandsweets.com/colors/brands/sweetgreen-com), Boeing (https://brandsweets.com/colors/brands/boeing-com). — https://brandsweets.com/colors/charcoal
- **Deep Sky Blue** #00bfff [harmony, pool: analogous] — Deep Sky Blue is #c5d9fc's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Mistral AI (https://brandsweets.com/colors/brands/mistral-ai), Calendly (https://brandsweets.com/colors/brands/calendly-com), Blueprint (https://brandsweets.com/palettes/technical#blueprint), Deep Water (https://brandsweets.com/palettes/dark#deep-water). — https://brandsweets.com/colors/deepskyblue
- **Goldenrod** #daa520 [harmony, pool: complementary] — Goldenrod sits directly opposite #c5d9fc on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Ledger Dark (https://brandsweets.com/palettes/dark#ledger-dark), Candlelight (https://brandsweets.com/palettes/warm#candlelight), Fireside (https://brandsweets.com/palettes/dark#fireside), Noir Beauty (https://brandsweets.com/palettes/dark#noir-beauty). — https://brandsweets.com/colors/goldenrod
- **Amber** #ffbf00 [pool] — Amber is paired with #c5d9fc in 5 real palettes, including Blueprint and Salesforce's brand system, as the accent. Seen in: Blueprint (https://brandsweets.com/palettes/technical#blueprint), Salesforce (https://brandsweets.com/colors/brands/salesforce-com), Trailhead (https://brandsweets.com/palettes/warm#trailhead), Ember (https://brandsweets.com/palettes/bold#ember). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 4 real palettes, including Uber's brand system and Binance's brand system put Blue beside #c5d9fc, 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
- **Brown** #a52a2a [pool] — 4 real palettes, including Velvet and Woodsmoke put Brown beside #c5d9fc, 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
- **Burlywood** #deb887 [pool] — Burlywood is paired with #c5d9fc in 6 real palettes, including Velvet and Coastal, as the accent. Seen in: Velvet (https://brandsweets.com/palettes/luxury#velvet), Coastal (https://brandsweets.com/palettes/cool#coastal), Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar), Chalkboard (https://brandsweets.com/palettes/dark#chalkboard). — https://brandsweets.com/colors/burlywood
- **Cadet Blue** #5f9ea0 [pool] — Designers have shipped Cadet Blue with #c5d9fc: 6 real palettes, including Estate and Coastal, as the supporting colour. Seen in: Estate (https://brandsweets.com/palettes/luxury#estate), Coastal (https://brandsweets.com/palettes/cool#coastal), Dusk (https://brandsweets.com/palettes/cool#dusk), Alpine (https://brandsweets.com/palettes/cool#alpine). — https://brandsweets.com/colors/cadetblue

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

- On white (#ffffff): 1.43:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #206ef3 (4.58:1); AA: background → #5e5e5e (4.54:1); AAA: text → #0a4fc7 (7.1:1); AAA: background → #424242 (7.04:1)
- On black (#000000): 14.7:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Mistral AI** — accent #b9daff (Δ 1.462) — https://brandsweets.com/colors/brands/mistral-ai
- **Calendly** — accent #c3dffe (Δ 1.505) — https://brandsweets.com/colors/brands/calendly-com

## Curated palettes containing it

- **Sorbet** (pastel, light, friendly) — #ffb4a2, #ffd6a5, #bde0fe, #ffffff, #2f2a33 — Peach, apricot and baby blue on white — a soft consumer-app palette that still gets AA text from a single dark ink. — tool: https://brandsweets.com/palettes/new/ffb4a2-ffd6a5-bde0fe-ffffff-2f2a33 — collection: https://brandsweets.com/palettes/pastel
- **Blue Mono** (monochrome, cool, clean, technical) — #1e40af, #60a5fa, #bfdbfe, #f8fafc, #172554 — One blue at four lightnesses — monochromatic in the colour-theory sense; the deep step is the text, the pale step the surface tint. — tool: https://brandsweets.com/palettes/new/1e40af-60a5fa-bfdbfe-f8fafc-172554 — collection: https://brandsweets.com/palettes/monochrome

## 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/c5d9fc-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: "#c5d9fc" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.