# #42d6ff

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

## Values

- Hex: `#42d6ff`
- RGB: rgb(66, 214, 255)
- HSL: hsl(193, 100%, 63%)
- OKLCH: oklch(0.816 0.133 220.8)
- Relative luminance: 0.5647
- Nearest named color: lightskyblue (#87cefa, Δ 4.979) — https://brandsweets.com/colors/lightskyblue
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/42d6ff

## Tints & shades

- Tints (toward white): #57dbff, #66deff, #7ae2ff, #8ae6ff, #9eeaff, #adedff, #c2f2ff, #d1f5ff, #e5f9ff, #f5fdff
- Shades (toward black): #24cfff, #05c9ff, #00b4e6, #009cc7, #0088ad, #00708f, #005870, #004052, #002833, #001014

## Harmonies

- Complementary: #ff6b42
- Analogous: #42ffca, #4278ff
- Triadic: #ff42d6, #d6ff42
- Split-complementary: #ff4278, #ffca42
- Tetradic: #ca42ff, #ff6b42, #78ff42

## Colors that go with #42d6ff

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 #42d6ff: 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 #42d6ff 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 #42d6ff: 5 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
- **Steel Blue** #4682b4 [pool] — Designers have shipped Steel Blue with #42d6ff: 4 real palettes, including Glacier and Astro's brand system, as the lead colour. Seen in: Glacier (https://brandsweets.com/palettes/cool#glacier), Astro (https://brandsweets.com/colors/brands/astro-build), 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 #42d6ff 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), Macaron (https://brandsweets.com/palettes/light#macaron). — https://brandsweets.com/colors/taupe
- **Wheat** #f5deb3 [pool] — Designers have shipped Wheat with #42d6ff: 4 real palettes, including Oatly's brand system and Mint Chip, as the supporting colour. Seen in: Oatly (https://brandsweets.com/colors/brands/oatly-com), Mint Chip (https://brandsweets.com/palettes/light#mint-chip), Still Water (https://brandsweets.com/palettes/cool#still-water), Sorbet (https://brandsweets.com/palettes/light#sorbet). — https://brandsweets.com/colors/wheat
- **Coral** #ff7f50 [harmony: complementary] — Coral sits directly opposite #42d6ff 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
- **Light Coral** #f08080 [harmony, pool: split] — Light Coral is a split-complement of #42d6ff: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Sentry (https://brandsweets.com/colors/brands/sentry-io). — https://brandsweets.com/colors/lightcoral

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

- On white (#ffffff): 1.71:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #0080a3 (4.55:1); AA: background → #525252 (4.57:1); AAA: text → #00607a (7.11:1); AAA: background → #363636 (7.07:1)
- On black (#000000): 12.29:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Vimeo** — primary #14d3fb (Δ 1.844) — 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/42d6ff-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: "#42d6ff" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.