# #c4e9f3

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

## Values

- Hex: `#c4e9f3`
- RGB: rgb(196, 233, 243)
- HSL: hsl(193, 66%, 86%)
- OKLCH: oklch(0.911 0.041 215.9)
- Relative luminance: 0.7648
- Nearest named color: Castle in the Sky (#d1eaed, Δ 1.784) — https://brandsweets.com/colors/castle-in-the-sky
- Moods: cool, vivid, light, technical, modern, clean
- Page: https://brandsweets.com/colors/c4e9f3

## Tints & shades

- Tints (toward white): #c8eaf4, #ccecf5, #d5eff6, #d9f1f7, #ddf2f8, #e1f4f9, #e6f5fa, #eef9fc, #f2fafc, #f7fcfd
- Shades (toward black): #a2dcec, #80cfe5, #5ac1dd, #38b4d6, #279ebe, #20829d, #19667b, #114655, #0a2a33, #030e11

## Harmonies

- Complementary: #f3cec4
- Analogous: #c4f3e6, #c4d1f3
- Triadic: #f3c4e9, #e9f3c4
- Split-complementary: #f3c4d1, #f3e6c4
- Tetradic: #e6c4f3, #f3cec4, #d1f3c4

## Colors that go with #c4e9f3

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 #c4e9f3: 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), Paper & Pine (https://brandsweets.com/palettes/minimal#paper-and-pine), Alaska Airlines (https://brandsweets.com/colors/brands/alaskaair-com). — https://brandsweets.com/colors/charcoal
- **Light Coral** #f08080 [harmony, pool: split] — Light Coral is a split-complement of #c4e9f3: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Blush (https://brandsweets.com/palettes/light#blush), Beach Hut (https://brandsweets.com/palettes/light#beach-hut), Meadow (https://brandsweets.com/palettes/light#meadow), Sentry (https://brandsweets.com/colors/brands/sentry-io). — https://brandsweets.com/colors/lightcoral
- **Plum** #dda0dd [harmony, pool: triadic] — Plum completes a triad with #c4e9f3 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Netlify (https://brandsweets.com/colors/brands/netlify-com), Blossom (https://brandsweets.com/palettes/light#blossom), Mercury (https://brandsweets.com/colors/brands/mercury-com), NYX Cosmetics (https://brandsweets.com/colors/brands/nyxcosmetics-com). — https://brandsweets.com/colors/plum
- **Sandy Brown** #f4a460 [harmony, pool: split] — Sandy Brown is a split-complement of #c4e9f3: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Forest Floor (https://brandsweets.com/palettes/dark#forest-floor), Undergrowth (https://brandsweets.com/palettes/dark#undergrowth), Dusk Gradient (https://brandsweets.com/palettes/dark#dusk-gradient), Retro Pop (https://brandsweets.com/palettes/playful#retro-pop). — https://brandsweets.com/colors/sandybrown
- **Sky Blue** #87ceeb [harmony, pool: analogous] — Sky Blue is #c4e9f3's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Still Water (https://brandsweets.com/palettes/cool#still-water), Harbour (https://brandsweets.com/palettes/cool#harbour), Coastal (https://brandsweets.com/palettes/cool#coastal), Dusty Blue (https://brandsweets.com/palettes/cool#dusty-blue). — https://brandsweets.com/colors/skyblue
- **Dark Salmon** #e9967a [harmony, pool: complementary] — Dark Salmon sits directly opposite #c4e9f3 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Chalkboard (https://brandsweets.com/palettes/dark#chalkboard), Polaroid (https://brandsweets.com/palettes/light#polaroid), Spline (https://brandsweets.com/colors/brands/spline-design). — https://brandsweets.com/colors/darksalmon
- **Amber** #ffbf00 [pool] — Amber is paired with #c4e9f3 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 Dropbox's brand system and Alaska Airlines's brand system put Blue beside #c4e9f3, 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

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

- On white (#ffffff): 1.29:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #1f7e98 (4.67:1); AA: background → #636363 (4.66:1); AAA: text → #175f72 (7.2:1); AAA: background → #474747 (7.21:1)
- On black (#000000): 16.3:1 — AA pass, AA-large pass, AAA pass

## 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/c4e9f3-a2b5be-df4e75-1f242d-e9f1ef?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: "#c4e9f3" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.