# #99dffa

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

## Values

- Hex: `#99dffa`
- RGB: rgb(153, 223, 250)
- HSL: hsl(197, 91%, 79%)
- OKLCH: oklch(0.867 0.079 224.1)
- Relative luminance: 0.6645
- Nearest named color: Blizzard Blue (#a3e3ed, Δ 2.599) — https://brandsweets.com/colors/blizzard-blue
- Moods: cool, vivid, light, technical, modern, clean
- Page: https://brandsweets.com/colors/99dffa

## Tints & shades

- Tints (toward white): #a2e2fb, #ace5fb, #b6e8fc, #c0ebfc, #c9eefc, #cef0fd, #d8f3fd, #e2f6fe, #ecf9fe, #f5fcff
- Shades (toward black): #77d4f9, #50c7f7, #2ebdf5, #0baeef, #0a95cd, #0879a6, #066084, #04445d, #032b3a, #010e13

## Harmonies

- Complementary: #fab499
- Analogous: #99fae5, #99aefa
- Triadic: #fa99df, #dffa99
- Split-complementary: #fa99ae, #fae599
- Tetradic: #e599fa, #fab499, #aefa99

## Colors that go with #99dffa

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 #99dffa: softer than #000 and cool enough to feel like part of the same palette. Seen in: Boeing (https://brandsweets.com/colors/brands/boeing-com), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember), Coastal (https://brandsweets.com/palettes/cool#coastal), Dusty Blue (https://brandsweets.com/palettes/cool#dusty-blue). — https://brandsweets.com/colors/charcoal
- **Deep Sky Blue** #00bfff [harmony, pool: analogous] — Deep Sky Blue is #99dffa's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Salesforce (https://brandsweets.com/colors/brands/salesforce-com), Mistral AI (https://brandsweets.com/colors/brands/mistral-ai), Calendly (https://brandsweets.com/colors/brands/calendly-com), Deep Water (https://brandsweets.com/palettes/dark#deep-water). — https://brandsweets.com/colors/deepskyblue
- **Dark Olive Green** #556b2f [pool] — Dark Olive Green shows up next to #99dffa in 4 real palettes, including Oatmeal and Forest Floor, as the lead colour. Seen in: Oatmeal (https://brandsweets.com/palettes/neutral#oatmeal), Forest Floor (https://brandsweets.com/palettes/dark#forest-floor), Undergrowth (https://brandsweets.com/palettes/dark#undergrowth), BrandSweets (https://brandsweets.com/colors/brands/brandsweets). — https://brandsweets.com/colors/darkolivegreen
- **Denim** #1560bd [pool] — Designers have shipped Denim with #99dffa: 4 real palettes, including Nikon's brand system and UEFA's brand system, as the supporting colour. Seen in: Nikon (https://brandsweets.com/colors/brands/nikon-com), UEFA (https://brandsweets.com/colors/brands/uefa-com), Fitbit (https://brandsweets.com/colors/brands/fitbit-com), Dusk (https://brandsweets.com/palettes/cool#dusk). — https://brandsweets.com/colors/denim
- **Midnight Blue** #191970 [pool] — 6 real palettes, including Blue Mono and First Snow put Midnight Blue beside #99dffa, as the text colour against it. Seen in: Blue Mono (https://brandsweets.com/palettes/cool#blue-mono), First Snow (https://brandsweets.com/palettes/cool#first-snow), Telehealth (https://brandsweets.com/palettes/modern#telehealth), Lavender Milk (https://brandsweets.com/palettes/light#lavender-milk). — https://brandsweets.com/colors/midnightblue
- **Sage Green** #9caf88 [pool] — Designers have shipped Sage Green with #99dffa: 5 real palettes, including Stone and Pine & Birch, as the supporting colour. Seen in: Stone (https://brandsweets.com/palettes/neutral#stone), Pine & Birch (https://brandsweets.com/palettes/clean#pine-and-birch), Oatmeal (https://brandsweets.com/palettes/neutral#oatmeal), Forest Floor (https://brandsweets.com/palettes/dark#forest-floor). — https://brandsweets.com/colors/sage-green
- **Slate Gray** #708090 [pool] — 7 real palettes, including Dusty Blue and Still Water put Slate Gray beside #99dffa, as the lead colour. Seen in: Dusty Blue (https://brandsweets.com/palettes/cool#dusty-blue), Still Water (https://brandsweets.com/palettes/cool#still-water), Ink Wash (https://brandsweets.com/palettes/dark#ink-wash), Graphite Mono (https://brandsweets.com/palettes/neutral#graphite-mono). — https://brandsweets.com/colors/slategray
- **Taupe** #483c32 [pool] — Taupe is paired with #99dffa in 20 real palettes, including Macaron and Nursery, as the text colour against it. Seen in: Macaron (https://brandsweets.com/palettes/light#macaron), Nursery (https://brandsweets.com/palettes/light#nursery), Boeing (https://brandsweets.com/colors/brands/boeing-com), Sorbet (https://brandsweets.com/palettes/light#sorbet). — https://brandsweets.com/colors/taupe

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

- On white (#ffffff): 1.47:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #087caa (4.69:1); AA: background → #5c5c5c (4.55:1); AAA: text → #065c7f (7.38:1); AAA: background → #404040 (7.06:1)
- On black (#000000): 14.29:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Netlify** — accent #89ddff (Δ 1.854) — https://brandsweets.com/colors/brands/netlify-com

## Curated palettes containing it

- **Glacier** (winter, cool, clean, technical) — #0077b6, #90e0ef, #023e8a, #f3f9fc, #03045e — Three blues from ice to deep water on a pale surface — a monochromatic winter set with real depth. — tool: https://brandsweets.com/palettes/new/0077b6-90e0ef-023e8a-f3f9fc-03045e — collection: https://brandsweets.com/palettes/winter

## 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/99dffa-9cb4c4-df4e6b-1f232d-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: "#99dffa" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.