# #63b2ee

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

## Values

- Hex: `#63b2ee`
- RGB: rgb(99, 178, 238)
- HSL: hsl(206, 80%, 66%)
- OKLCH: oklch(0.737 0.117 243.3)
- Relative luminance: 0.4067
- Nearest named color: Cerulean (#55aaee, Δ 2.671) — https://brandsweets.com/colors/cerulean
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/63b2ee

## Tints & shades

- Tints (toward white): #71b8ef, #7ebff1, #91c8f3, #9fcff4, #acd6f6, #baddf7, #c8e4f9, #daedfb, #e8f4fc, #f6fafe
- Shades (toward black): #47a4eb, #2c96e8, #1885d8, #1574bc, #1263a1, #0f5285, #0c416a, #082d49, #051c2e, #020b12

## Harmonies

- Complementary: #ee9f63
- Analogous: #63eee4, #636cee
- Triadic: #ee63b2, #b2ee63
- Split-complementary: #ee636c, #eee463
- Tetradic: #e463ee, #ee9f63, #6cee63

## Colors that go with #63b2ee

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 #63b2ee: softer than #000 and cool enough to feel like part of the same palette. Seen in: Lamborghini (https://brandsweets.com/colors/brands/lamborghini-com), Blizzard (https://brandsweets.com/colors/brands/blizzard-com), Mercury (https://brandsweets.com/colors/brands/mercury-com), Lagoon (https://brandsweets.com/palettes/vivid#lagoon). — https://brandsweets.com/colors/charcoal
- **Sandy Brown** #f4a460 [harmony, pool: complementary] — Sandy Brown sits directly opposite #63b2ee on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Webflow (https://brandsweets.com/colors/brands/webflow-com). — https://brandsweets.com/colors/sandybrown
- **Amber** #ffbf00 [pool] — Amber is paired with #63b2ee in 5 real palettes, including NBA's brand system and Blueprint, as the lead colour. Seen in: NBA (https://brandsweets.com/colors/brands/nba-com), Blueprint (https://brandsweets.com/palettes/technical#blueprint), Salesforce (https://brandsweets.com/colors/brands/salesforce-com), 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 #63b2ee, 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), Uber (https://brandsweets.com/colors/brands/uber-com). — https://brandsweets.com/colors/blue
- **Dark Orange** #ff8c00 [pool] — Dark Orange shows up next to #63b2ee in 4 real palettes, including Learning App and Elastic's brand system, as the accent. Seen in: Learning App (https://brandsweets.com/palettes/playful#learning-app), Elastic (https://brandsweets.com/colors/brands/elastic-co), PayPal (https://brandsweets.com/colors/brands/paypal-com), Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com). — https://brandsweets.com/colors/darkorange
- **Denim** #1560bd [pool] — Designers have shipped Denim with #63b2ee: 7 real palettes, including Coca-Cola's brand system and Venmo's brand system, as the accent. Seen in: Coca-Cola (https://brandsweets.com/colors/brands/coca-cola-com), Venmo (https://brandsweets.com/colors/brands/venmo-com), Open House (https://brandsweets.com/palettes/clean#open-house), Apple (https://brandsweets.com/colors/brands/apple-com). — https://brandsweets.com/colors/denim
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #63b2ee: 4 real palettes, including Venmo's brand system and Patreon's brand system, as the lead colour. Seen in: Venmo (https://brandsweets.com/colors/brands/venmo-com), Patreon (https://brandsweets.com/colors/brands/patreon-com), Figma (https://brandsweets.com/colors/brands/figma), Opensea (https://brandsweets.com/colors/brands/opensea-io). — https://brandsweets.com/colors/dodgerblue
- **Medium Sea Green** #3cb371 [pool] — Medium Sea Green is paired with #63b2ee in 4 real palettes, including Terminal and Telehealth, as the lead colour. Seen in: Terminal (https://brandsweets.com/palettes/technical#terminal), Telehealth (https://brandsweets.com/palettes/modern#telehealth), Spotify (https://brandsweets.com/colors/brands/spotify), Unity (https://brandsweets.com/colors/brands/unity-com). — https://brandsweets.com/colors/mediumseagreen

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

- On white (#ffffff): 2.3:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #1679c5 (4.59:1); AA: background → #404040 (4.51:1); AAA: text → #105a93 (7.23:1); AAA: background → #212121 (7:1)
- On black (#000000): 9.13:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Midjourney** — secondary #63b3ed (Δ 0.346) — https://brandsweets.com/colors/brands/midjourney-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/63b2ee-9caec4-df4e56-1f212d-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: "#63b2ee" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.