# #42d2fa

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

## Values

- Hex: `#42d2fa`
- RGB: rgb(66, 210, 250)
- HSL: hsl(193, 95%, 62%)
- OKLCH: oklch(0.805 0.131 220.8)
- Relative luminance: 0.5415
- Nearest named color: Blue Mana (#68c2f5, Δ 4.477) — https://brandsweets.com/colors/blue-mana
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/42d2fa

## Tints & shades

- Tints (toward white): #56d7fb, #65dbfb, #79dffc, #88e3fc, #9ce7fc, #afecfd, #bef0fd, #d2f4fe, #e1f8fe, #f5fdff
- Shades (toward black): #24cbf9, #06c4f9, #06b1e0, #0599c2, #0481a4, #036a86, #035268, #023f50, #012732, #011014

## Harmonies

- Complementary: #fa6a42
- Analogous: #42fac6, #4276fa
- Triadic: #fa42d2, #d2fa42
- Split-complementary: #fa4276, #fac642
- Tetradic: #c642fa, #fa6a42, #76fa42

## Colors that go with #42d2fa

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 #42d2fa: 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
- **Crimson** #dc143c [pool] — Crimson is paired with #42d2fa 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 #42d2fa: 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] — 4 real palettes, including Telehealth and Kraken's brand system put Midnight Blue beside #42d2fa, as the text colour against it. Seen in: Telehealth (https://brandsweets.com/palettes/modern#telehealth), Kraken (https://brandsweets.com/colors/brands/kraken-com), Blue Mono (https://brandsweets.com/palettes/cool#blue-mono), Confluent (https://brandsweets.com/colors/brands/confluent-io). — https://brandsweets.com/colors/midnightblue
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #42d2fa 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 #42d2fa: 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
- **Taupe** #483c32 [pool] — Taupe is paired with #42d2fa in 10 real palettes, including Boeing's brand system and Astro's brand system, as the text colour against it. Seen in: Boeing (https://brandsweets.com/colors/brands/boeing-com), Astro (https://brandsweets.com/colors/brands/astro-build), Crayon Box (https://brandsweets.com/palettes/playful#crayon-box), Raycast (https://brandsweets.com/colors/brands/raycast). — https://brandsweets.com/colors/taupe
- **Coral** #ff7f50 [harmony: complementary] — Coral sits directly opposite #42d2fa on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. — https://brandsweets.com/colors/coral

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

- On white (#ffffff): 1.78:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #047e9f (4.68:1); AA: background → #4f4f4f (4.61:1); AAA: text → #035e77 (7.31:1); AAA: background → #333333 (7.12:1)
- On black (#000000): 11.83:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Twilio** — primary #3acefa (Δ 1.238) — https://brandsweets.com/colors/brands/twilio-com
- **Twilio** — secondary #3acefa (Δ 1.238) — https://brandsweets.com/colors/brands/twilio-com
- **Vimeo** — primary #14d3fb (Δ 1.341) — https://brandsweets.com/colors/brands/vimeo-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/42d2fa-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: "#42d2fa" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.