# #99f3ff

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

## Values

- Hex: `#99f3ff`
- RGB: rgb(153, 243, 255)
- HSL: hsl(187, 100%, 80%)
- OKLCH: oklch(0.912 0.088 206.5)
- Relative luminance: 0.7809
- Nearest named color: Alpine Expedition (#99eeff, Δ 1.355) — https://brandsweets.com/colors/alpine-expedition
- Moods: cool, vivid, light, technical, modern, clean
- Page: https://brandsweets.com/colors/99f3ff

## Tints & shades

- Tints (toward white): #a3f4ff, #adf5ff, #b3f6ff, #bdf7ff, #c7f8ff, #d1faff, #dbfbff, #e0fbff, #ebfdff, #f5feff
- Shades (toward black): #70eeff, #4deaff, #24e5ff, #00e1ff, #00bdd6, #0099ad, #007a8a, #005661, #00363d, #001214

## Harmonies

- Complementary: #ffa599
- Analogous: #99ffd8, #99c0ff
- Triadic: #ff99f3, #f3ff99
- Split-complementary: #ff99c0, #ffd899
- Tetradic: #d899ff, #ffa599, #c0ff99

## Colors that go with #99f3ff

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 #99f3ff: 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), Sweetgreen (https://brandsweets.com/colors/brands/sweetgreen-com), Boeing (https://brandsweets.com/colors/brands/boeing-com), Tide Pool (https://brandsweets.com/palettes/cool#tide-pool). — https://brandsweets.com/colors/charcoal
- **Deep Sky Blue** #00bfff [harmony, pool: analogous] — Deep Sky Blue is #99f3ff's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Deep Water (https://brandsweets.com/palettes/dark#deep-water), Calendly (https://brandsweets.com/colors/brands/calendly-com), Salesforce (https://brandsweets.com/colors/brands/salesforce-com), Mistral AI (https://brandsweets.com/colors/brands/mistral-ai). — https://brandsweets.com/colors/deepskyblue
- **Goldenrod** #daa520 [harmony, pool: triadic] — Goldenrod completes a triad with #99f3ff — 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), Fireside (https://brandsweets.com/palettes/dark#fireside), Noir Beauty (https://brandsweets.com/palettes/dark#noir-beauty), Sapphire & Gold (https://brandsweets.com/palettes/luxury#sapphire-and-gold). — https://brandsweets.com/colors/goldenrod
- **Amber** #ffbf00 [pool] — Amber is paired with #99f3ff in 6 real palettes, including Salesforce's brand system and Blueprint, as the accent. Seen in: Salesforce (https://brandsweets.com/colors/brands/salesforce-com), Blueprint (https://brandsweets.com/palettes/technical#blueprint), Trailhead (https://brandsweets.com/palettes/warm#trailhead), Ember (https://brandsweets.com/palettes/bold#ember). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 5 real palettes, including Uber's brand system and Dropbox's brand system put Blue beside #99f3ff, as the accent. Seen in: Uber (https://brandsweets.com/colors/brands/uber-com), 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). — https://brandsweets.com/colors/blue
- **Blush Pink** #e8b4b8 [pool] — 6 real palettes, including Nursery and Estate put Blush Pink beside #99f3ff, as the lead colour. Seen in: Nursery (https://brandsweets.com/palettes/light#nursery), Estate (https://brandsweets.com/palettes/luxury#estate), 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] — 4 real palettes, including Typewriter and Velvet put Brown beside #99f3ff, as the accent. Seen in: Typewriter (https://brandsweets.com/palettes/editorial#typewriter), Velvet (https://brandsweets.com/palettes/luxury#velvet), Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke), Garnet (https://brandsweets.com/palettes/warm#garnet). — https://brandsweets.com/colors/brown
- **Burlywood** #deb887 [pool] — Burlywood is paired with #99f3ff in 6 real palettes, including Chalkboard and Kiln, as the lead colour. Seen in: Chalkboard (https://brandsweets.com/palettes/dark#chalkboard), Kiln (https://brandsweets.com/palettes/dark#kiln), Velvet (https://brandsweets.com/palettes/luxury#velvet), Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar). — https://brandsweets.com/colors/burlywood

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

- On white (#ffffff): 1.26:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #007e8f (4.79:1); AA: background → #666666 (4.54:1); AAA: text → #005f6b (7.37:1); AAA: background → #4a4a4a (7.01:1)
- On black (#000000): 16.62:1 — 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/99f3ff-a2b8be-df4e83-1f262d-e9f1ee?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: "#99f3ff" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.