# #4fd5f3

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

## Values

- Hex: `#4fd5f3`
- RGB: rgb(79, 213, 243)
- HSL: hsl(191, 87%, 63%)
- OKLCH: oklch(0.812 0.121 215.6)
- Relative luminance: 0.5572
- Nearest named color: Sky Blue (#87ceeb, Δ 4.324) — https://brandsweets.com/colors/skyblue
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/4fd5f3

## Tints & shades

- Tints (toward white): #62d9f4, #70ddf5, #83e1f6, #91e5f7, #a4e9f9, #b3edfa, #c6f1fb, #d4f5fc, #e7f9fd, #f5fdfe
- Shades (toward black): #32cef1, #15c7ef, #0fb2d7, #0d9aba, #0b86a2, #096f86, #075769, #053f4c, #032830, #011013

## Harmonies

- Complementary: #f36d4f
- Analogous: #4ff3bf, #4f83f3
- Triadic: #f34fd5, #d5f34f
- Split-complementary: #f34f83, #f3bf4f
- Tetradic: #bf4ff3, #f36d4f, #83f34f

## Colors that go with #4fd5f3

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 #4fd5f3: softer than #000 and cool enough to feel like part of the same palette. Seen in: UEFA (https://brandsweets.com/colors/brands/uefa-com), Vimeo (https://brandsweets.com/colors/brands/vimeo-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 #4fd5f3 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 #4fd5f3 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), Formula 1 (https://brandsweets.com/colors/brands/formula1-com). — https://brandsweets.com/colors/crimson
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #4fd5f3: 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
- **Taupe** #483c32 [pool] — Taupe is paired with #4fd5f3 in 11 real palettes, including Boeing's brand system and Crayon Box, as the text colour against it. Seen in: Boeing (https://brandsweets.com/colors/brands/boeing-com), Crayon Box (https://brandsweets.com/palettes/playful#crayon-box), Macaron (https://brandsweets.com/palettes/light#macaron), Nursery (https://brandsweets.com/palettes/light#nursery). — https://brandsweets.com/colors/taupe
- **Wheat** #f5deb3 [pool] — Designers have shipped Wheat with #4fd5f3: 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
- **Light Coral** #f08080 [harmony, pool: split] — Light Coral is a split-complement of #4fd5f3: 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
- **Blue** #0000ff [pool] — 3 real palettes, including Warp's brand system and Uber's brand system put Blue beside #4fd5f3, as the supporting colour. Seen in: Warp (https://brandsweets.com/colors/brands/warp-dev), Uber (https://brandsweets.com/colors/brands/uber-com), Canva (https://brandsweets.com/colors/brands/canva-com). — https://brandsweets.com/colors/blue

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

- On white (#ffffff): 1.73:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #0b7f99 (4.66:1); AA: background → #525252 (4.52:1); AAA: text → #085f72 (7.27:1); AAA: background → #333333 (7.31:1)
- On black (#000000): 12.14:1 — 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

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/4fd5f3-a2b6be-df4e7a-1f252d-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: "#4fd5f3" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.