# #63b1de

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

## Values

- Hex: `#63b1de`
- RGB: rgb(99, 177, 222)
- HSL: hsl(202, 65%, 63%)
- OKLCH: oklch(0.728 0.101 235.8)
- Relative luminance: 0.3937
- Nearest named color: Blue Martini (#52b4d3, Δ 2.517) — https://brandsweets.com/colors/blue-martini
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/63b1de

## Tints & shades

- Tints (toward white): #74b9e2, #81c0e4, #92c8e8, #9ecfea, #afd7ee, #bcddf1, #cde6f4, #d9ecf7, #eaf4fb, #f7fbfd
- Shades (toward black): #4aa4d9, #3198d3, #2887bd, #2375a4, #1e668f, #195476, #14425d, #0e3043, #091e2a, #040c11

## Harmonies

- Complementary: #de9063
- Analogous: #63dece, #6374de
- Triadic: #de63b1, #b1de63
- Split-complementary: #de6374, #dece63
- Tetradic: #ce63de, #de9063, #74de63

## Colors that go with #63b1de

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 #63b1de: softer than #000 and cool enough to feel like part of the same palette. Seen in: Lamborghini (https://brandsweets.com/colors/brands/lamborghini-com), Lagoon (https://brandsweets.com/palettes/vivid#lagoon), Mercury (https://brandsweets.com/colors/brands/mercury-com), Blizzard (https://brandsweets.com/colors/brands/blizzard-com). — https://brandsweets.com/colors/charcoal
- **Dark Salmon** #e9967a [harmony, pool: complementary] — Dark Salmon sits directly opposite #63b1de 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), Chalkboard (https://brandsweets.com/palettes/dark#chalkboard). — https://brandsweets.com/colors/darksalmon
- **Amber** #ffbf00 [pool] — Amber is paired with #63b1de in 4 real palettes, including Blueprint and NBA's brand system, as the accent. Seen in: Blueprint (https://brandsweets.com/palettes/technical#blueprint), NBA (https://brandsweets.com/colors/brands/nba-com), Salesforce (https://brandsweets.com/colors/brands/salesforce-com), Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 4 real palettes, including Warp's brand system and Canva's brand system put Blue beside #63b1de, 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 #63b1de 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 #63b1de: 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), Dusk (https://brandsweets.com/palettes/cool#dusk). — https://brandsweets.com/colors/denim
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #63b1de: 4 real palettes, including Patreon's brand system and Venmo's brand system, as the accent. Seen in: Patreon (https://brandsweets.com/colors/brands/patreon-com), Venmo (https://brandsweets.com/colors/brands/venmo-com), Figma (https://brandsweets.com/colors/brands/figma), Opensea (https://brandsweets.com/colors/brands/opensea-io). — https://brandsweets.com/colors/dodgerblue
- **Midnight Blue** #191970 [pool] — 9 real palettes, including First Snow and Confluent's brand system put Midnight Blue beside #63b1de, as the text colour against it. Seen in: First Snow (https://brandsweets.com/palettes/cool#first-snow), Confluent (https://brandsweets.com/colors/brands/confluent-io), Blue Mono (https://brandsweets.com/palettes/cool#blue-mono), Kraken (https://brandsweets.com/colors/brands/kraken-com). — https://brandsweets.com/colors/midnightblue

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

- On white (#ffffff): 2.37:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #257bad (4.65:1); AA: background → #3d3d3d (4.59:1); AAA: text → #1c5d82 (7.15:1); AAA: background → #1c1c1c (7.2:1)
- On black (#000000): 8.87:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Cursor** — accent #65afe0 (Δ 0.713) — https://brandsweets.com/colors/brands/cursor-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/63b1de-9cb1c4-df4e5f-1f222d-e9f1f0?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: "#63b1de" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.