# #53aef9

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

## Values

- Hex: `#53aef9`
- RGB: rgb(83, 174, 249)
- HSL: hsl(207, 93%, 65%)
- OKLCH: oklch(0.728 0.14 246.2)
- Relative luminance: 0.3895
- Nearest named color: Cerulean (#55aaee, Δ 1.724) — https://brandsweets.com/colors/cerulean
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/53aef9

## Tints & shades

- Tints (toward white): #62b5f9, #75befa, #84c5fb, #93ccfb, #a6d5fc, #b5dcfc, #c4e3fd, #d3eafd, #e6f3fe, #f5faff
- Shades (toward black): #35a0f8, #1892f7, #0883e7, #0772ca, #0662ac, #054e8a, #043d6c, #032d4f, #021c31, #010b14

## Harmonies

- Complementary: #f99d53
- Analogous: #53f9f0, #535bf9
- Triadic: #f953ae, #aef953
- Split-complementary: #f9535b, #f9f053
- Tetradic: #f053f9, #f99d53, #5bf953

## Colors that go with #53aef9

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 #53aef9: softer than #000 and cool enough to feel like part of the same palette. Seen in: Blizzard (https://brandsweets.com/colors/brands/blizzard-com), Lamborghini (https://brandsweets.com/colors/brands/lamborghini-com), Lagoon (https://brandsweets.com/palettes/vivid#lagoon), Mercury (https://brandsweets.com/colors/brands/mercury-com). — https://brandsweets.com/colors/charcoal
- **Dark Orange** #ff8c00 [harmony, pool: complementary] — Dark Orange sits directly opposite #53aef9 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Learning App (https://brandsweets.com/palettes/playful#learning-app), Elastic (https://brandsweets.com/colors/brands/elastic-co), Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com), PayPal (https://brandsweets.com/colors/brands/paypal-com). — https://brandsweets.com/colors/darkorange
- **Amber** #ffbf00 [pool] — Amber is paired with #53aef9 in 7 real palettes, including NBA's brand system and Salesforce's brand system, as the lead colour. Seen in: NBA (https://brandsweets.com/colors/brands/nba-com), Salesforce (https://brandsweets.com/colors/brands/salesforce-com), Blueprint (https://brandsweets.com/palettes/technical#blueprint), Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 5 real palettes, including Warp's brand system and Canva's brand system put Blue beside #53aef9, as the supporting colour. Seen in: Warp (https://brandsweets.com/colors/brands/warp-dev), Canva (https://brandsweets.com/colors/brands/canva-com), Spotify (https://brandsweets.com/colors/brands/spotify), Unity (https://brandsweets.com/colors/brands/unity-com). — https://brandsweets.com/colors/blue
- **Denim** #1560bd [pool] — Designers have shipped Denim with #53aef9: 8 real palettes, including Venmo's brand system and Coca-Cola's brand system, as the accent. Seen in: Venmo (https://brandsweets.com/colors/brands/venmo-com), Coca-Cola (https://brandsweets.com/colors/brands/coca-cola-com), Apple (https://brandsweets.com/colors/brands/apple-com), Gopro (https://brandsweets.com/colors/brands/gopro-com). — https://brandsweets.com/colors/denim
- **Gold** #ffd700 [pool] — Gold shows up next to #53aef9 in 4 real palettes, including Prime Video's brand system and Miro's brand system, as the lead colour. Seen in: Prime Video (https://brandsweets.com/colors/brands/primevideo-com), Miro (https://brandsweets.com/colors/brands/miro-com), Phantom: The money app that'll take you placesLogo PhantomLogo PhantomLogo Phantom (https://brandsweets.com/colors/brands/phantom-com), Star Wars (https://brandsweets.com/colors/brands/starwars-com). — https://brandsweets.com/colors/gold
- **Medium Sea Green** #3cb371 [pool] — Medium Sea Green is paired with #53aef9 in 4 real palettes, including Terminal and Spotify's brand system, as the lead colour. Seen in: Terminal (https://brandsweets.com/palettes/technical#terminal), Spotify (https://brandsweets.com/colors/brands/spotify), Unity (https://brandsweets.com/colors/brands/unity-com), Telehealth (https://brandsweets.com/palettes/modern#telehealth). — https://brandsweets.com/colors/mediumseagreen
- **Midnight Blue** #191970 [pool] — 9 real palettes, including Blue Mono and Kraken's brand system put Midnight Blue beside #53aef9, as the text colour against it. Seen in: Blue Mono (https://brandsweets.com/palettes/cool#blue-mono), 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

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

- On white (#ffffff): 2.39:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #0878d4 (4.52:1); AA: background → #3d3d3d (4.55:1); AAA: text → #06599d (7.18:1); AAA: background → #1c1c1c (7.13:1)
- On black (#000000): 8.79:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Remix** — secondary #59b0ff (Δ 1.126) — https://brandsweets.com/colors/brands/remix-run
- **Calendly** — primary #64acfb (Δ 1.494) — https://brandsweets.com/colors/brands/calendly-com
- **Mistral AI** — primary #54b4fc (Δ 1.616) — https://brandsweets.com/colors/brands/mistral-ai
- **Venmo** — secondary #4bb4ff (Δ 1.631) — https://brandsweets.com/colors/brands/venmo-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/53aef9-9cadc4-df4e53-1f212d-e9f1f1?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: "#53aef9" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.