# #37c3fb

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

## Values

- Hex: `#37c3fb`
- RGB: rgb(55, 195, 251)
- HSL: hsl(197, 96%, 60%)
- OKLCH: oklch(0.768 0.139 230.2)
- Relative luminance: 0.4681
- Nearest named color: deepskyblue (#00bfff, Δ 1.973) — https://brandsweets.com/colors/deepskyblue
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/37c3fb

## Tints & shades

- Tints (toward white): #4bc9fb, #5fcffc, #6ed4fc, #82dafc, #96e0fd, #aae6fd, #beecfe, #cdf0fe, #e1f6fe, #f5fcff
- Shades (toward black): #19bafa, #05b1f5, #049bd7, #0489be, #0374a0, #035e82, #024c69, #02364b, #012432, #000e14

## Harmonies

- Complementary: #fb6f37
- Analogous: #37fbd0, #3762fb
- Triadic: #fb37c3, #c3fb37
- Split-complementary: #fb3762, #fbd037
- Tetradic: #d037fb, #fb6f37, #62fb37

## Colors that go with #37c3fb

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 #37c3fb: 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), Lagoon (https://brandsweets.com/palettes/vivid#lagoon), Lamborghini (https://brandsweets.com/colors/brands/lamborghini-com). — https://brandsweets.com/colors/charcoal
- **Dark Orange** #ff8c00 [harmony, pool: complementary] — Dark Orange sits directly opposite #37c3fb on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: PayPal (https://brandsweets.com/colors/brands/paypal-com), 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). — https://brandsweets.com/colors/darkorange
- **Amber** #ffbf00 [pool] — Amber is paired with #37c3fb in 4 real palettes, including Blueprint and Salesforce's brand system, as the accent. Seen in: Blueprint (https://brandsweets.com/palettes/technical#blueprint), Salesforce (https://brandsweets.com/colors/brands/salesforce-com), NBA (https://brandsweets.com/colors/brands/nba-com), Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com). — https://brandsweets.com/colors/amber
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #37c3fb: 4 real palettes, including Figma's brand system and Patreon's brand system, as the accent. Seen in: Figma (https://brandsweets.com/colors/brands/figma), Patreon (https://brandsweets.com/colors/brands/patreon-com), Venmo (https://brandsweets.com/colors/brands/venmo-com), Opensea (https://brandsweets.com/colors/brands/opensea-io). — https://brandsweets.com/colors/dodgerblue
- **Midnight Blue** #191970 [pool] — 7 real palettes, including Kraken's brand system and Telehealth put Midnight Blue beside #37c3fb, as the lead colour. Seen in: Kraken (https://brandsweets.com/colors/brands/kraken-com), Telehealth (https://brandsweets.com/palettes/modern#telehealth), Blue Mono (https://brandsweets.com/palettes/cool#blue-mono), Confluent (https://brandsweets.com/colors/brands/confluent-io). — https://brandsweets.com/colors/midnightblue
- **Periwinkle** #ccccff [pool] — Periwinkle shows up next to #37c3fb in 4 real palettes, including Mistral AI's brand system and Calendly's brand system, as the accent. Seen in: Mistral AI (https://brandsweets.com/colors/brands/mistral-ai), Calendly (https://brandsweets.com/colors/brands/calendly-com), Blue Mono (https://brandsweets.com/palettes/cool#blue-mono), Lavender Milk (https://brandsweets.com/palettes/light#lavender-milk). — https://brandsweets.com/colors/periwinkle
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #37c3fb in 7 real palettes, including 1password's brand system and NBA's brand system, as the accent. Seen in: 1password (https://brandsweets.com/colors/brands/1password-com), NBA (https://brandsweets.com/colors/brands/nba-com), Telehealth (https://brandsweets.com/palettes/modern#telehealth), Elastic (https://brandsweets.com/colors/brands/elastic-co). — https://brandsweets.com/colors/royalblue
- **Steel Blue** #4682b4 [pool] — Designers have shipped Steel Blue with #37c3fb: 4 real palettes, including Astro's brand system and Deep Water, as the lead colour. Seen in: 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), Glacier (https://brandsweets.com/palettes/cool#glacier). — https://brandsweets.com/colors/steelblue

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

- On white (#ffffff): 2.03:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #047eaf (4.56:1); AA: background → #474747 (4.58:1); AAA: text → #035e82 (7.17:1); AAA: background → #292929 (7.18:1)
- On black (#000000): 10.36:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Warp** — primary #00c2ff (Δ 1.417) — https://brandsweets.com/colors/brands/warp-dev

## Curated palettes containing it

- **Blueprint** (technical, cool, modern, dark) — #38bdf8, #818cf8, #fbbf24, #0f172a, #e2e8f0 — Cyan and indigo on navy is the developer-tool look; amber is the only warm note, so it always reads as 'attention'. — tool: https://brandsweets.com/palettes/new/38bdf8-818cf8-fbbf24-0f172a-e2e8f0 — collection: https://brandsweets.com/palettes/technical

## 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/37c3fb-9cb4c4-df4e6b-1f232d-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: "#37c3fb" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.