# #4fcff3

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

## Values

- Hex: `#4fcff3`
- RGB: rgb(79, 207, 243)
- HSL: hsl(193, 87%, 63%)
- OKLCH: oklch(0.798 0.121 220.1)
- Relative luminance: 0.5276
- Nearest named color: Blue Mana (#68c2f5, Δ 3.835) — https://brandsweets.com/colors/blue-mana
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/4fcff3

## Tints & shades

- Tints (toward white): #62d4f4, #70d8f5, #83ddf6, #91e1f7, #a4e6f9, #b3eafa, #c6effb, #d4f3fc, #e7f9fd, #f5fcfe
- Shades (toward black): #32c7f1, #15c0ef, #0fabd7, #0d94ba, #0b81a2, #096b86, #075469, #053d4c, #032630, #010f13

## Harmonies

- Complementary: #f3724f
- Analogous: #4ff3c4, #4f7df3
- Triadic: #f34fcf, #cff34f
- Split-complementary: #f34f7d, #f3c44f
- Tetradic: #c44ff3, #f3724f, #7df34f

## Colors that go with #4fcff3

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 #4fcff3: softer than #000 and cool enough to feel like part of the same palette. Seen in: Vimeo (https://brandsweets.com/colors/brands/vimeo-com), UEFA (https://brandsweets.com/colors/brands/uefa-com), Boeing (https://brandsweets.com/colors/brands/boeing-com), Coastal (https://brandsweets.com/palettes/cool#coastal). — https://brandsweets.com/colors/charcoal
- **Dark Salmon** #e9967a [harmony, pool: complementary] — Dark Salmon sits directly opposite #4fcff3 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Polaroid (https://brandsweets.com/palettes/light#polaroid). — https://brandsweets.com/colors/darksalmon
- **Crimson** #dc143c [pool] — Crimson is paired with #4fcff3 in 4 real palettes, including Riot Games's brand system and Tiffany & Co.'s brand system, as the supporting colour. Seen in: Riot Games (https://brandsweets.com/colors/brands/riotgames-com), Tiffany & Co. (https://brandsweets.com/colors/brands/tiffany-com), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember), JBL (https://brandsweets.com/colors/brands/jbl-com). — https://brandsweets.com/colors/crimson
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #4fcff3: 4 real palettes, including Patreon's brand system and Opensea's brand system, as the accent. Seen in: Patreon (https://brandsweets.com/colors/brands/patreon-com), Opensea (https://brandsweets.com/colors/brands/opensea-io), Figma (https://brandsweets.com/colors/brands/figma), Venmo (https://brandsweets.com/colors/brands/venmo-com). — https://brandsweets.com/colors/dodgerblue
- **Midnight Blue** #191970 [pool] — 6 real palettes, including Telehealth and Kraken's brand system put Midnight Blue beside #4fcff3, as the text colour against it. Seen in: Telehealth (https://brandsweets.com/palettes/modern#telehealth), Kraken (https://brandsweets.com/colors/brands/kraken-com), Confluent (https://brandsweets.com/colors/brands/confluent-io), First Snow (https://brandsweets.com/palettes/cool#first-snow). — https://brandsweets.com/colors/midnightblue
- **Powder Blue** #b0e0e6 [pool] — Designers have shipped Powder Blue with #4fcff3: 4 real palettes, including Audible's brand system and Calendly's brand system, as the supporting colour. Seen in: Audible (https://brandsweets.com/colors/brands/audible-com), Calendly (https://brandsweets.com/colors/brands/calendly-com), Steam (https://brandsweets.com/colors/brands/steampowered-com), First Snow (https://brandsweets.com/palettes/cool#first-snow). — https://brandsweets.com/colors/powderblue
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #4fcff3 in 6 real palettes, including Telehealth and 1password's brand system, as the lead colour. Seen in: Telehealth (https://brandsweets.com/palettes/modern#telehealth), 1password (https://brandsweets.com/colors/brands/1password-com), NBA (https://brandsweets.com/colors/brands/nba-com), Confluent (https://brandsweets.com/colors/brands/confluent-io). — https://brandsweets.com/colors/royalblue
- **Steel Blue** #4682b4 [pool] — Designers have shipped Steel Blue with #4fcff3: 4 real palettes, including Astro's brand system and Glacier, as the lead colour. Seen in: Astro (https://brandsweets.com/colors/brands/astro-build), Glacier (https://brandsweets.com/palettes/cool#glacier), Deep Water (https://brandsweets.com/palettes/dark#deep-water), Telegram (https://brandsweets.com/colors/brands/telegram-org). — https://brandsweets.com/colors/steelblue

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

- On white (#ffffff): 1.82:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #0b7e9d (4.68:1); AA: background → #4f4f4f (4.51:1); AAA: text → #085f77 (7.21:1); AAA: background → #303030 (7.26:1)
- On black (#000000): 11.55:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Twilio** — primary #3acefa (Δ 1.48) — https://brandsweets.com/colors/brands/twilio-com
- **Twilio** — secondary #3acefa (Δ 1.48) — https://brandsweets.com/colors/brands/twilio-com

## Fonts for this mood

- technical: https://brandsweets.com/fonts/mood/technical
- modern: https://brandsweets.com/fonts/mood/modern

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/4fcff3-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: "#4fcff3" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.