# #39a6ea

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

## Values

- Hex: `#39a6ea`
- RGB: rgb(57, 166, 234)
- HSL: hsl(203, 81%, 57%)
- OKLCH: oklch(0.694 0.139 240.9)
- Relative luminance: 0.3408
- Nearest named color: Cerulean (#55aaee, Δ 2.421) — https://brandsweets.com/colors/cerulean
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/39a6ea

## Tints & shades

- Tints (toward white): #4baeec, #5db7ee, #70bff0, #82c7f2, #99d2f4, #acdaf6, #bee2f8, #d1eafa, #e3f3fc, #f6fbfe
- Shades (toward black): #219ce8, #168bd4, #147cbd, #116da6, #0f5e8f, #0c4c73, #0a3d5c, #072d45, #041b2a, #020c12

## Harmonies

- Complementary: #ea7d39
- Analogous: #39ead5, #394dea
- Triadic: #ea39a6, #a6ea39
- Split-complementary: #ea394d, #ead539
- Tetradic: #d539ea, #ea7d39, #4dea39

## Colors that go with #39a6ea

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 #39a6ea: 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), Lido (https://brandsweets.com/palettes/vivid#lido), Lagoon (https://brandsweets.com/palettes/vivid#lagoon). — https://brandsweets.com/colors/charcoal
- **Medium Sea Green** #3cb371 [harmony, pool: triadic] — Medium Sea Green completes a triad with #39a6ea — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Terminal (https://brandsweets.com/palettes/technical#terminal), Unity (https://brandsweets.com/colors/brands/unity-com), Spotify (https://brandsweets.com/colors/brands/spotify), Olympics (https://brandsweets.com/colors/brands/olympics-com). — https://brandsweets.com/colors/mediumseagreen
- **Peru** #cd853f [harmony, pool: complementary] — Peru sits directly opposite #39a6ea on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Estate (https://brandsweets.com/palettes/luxury#estate). — https://brandsweets.com/colors/peru
- **Amber** #ffbf00 [pool] — Amber is paired with #39a6ea in 8 real palettes, including Salesforce's brand system and NBA's brand system, as the accent. Seen in: Salesforce (https://brandsweets.com/colors/brands/salesforce-com), NBA (https://brandsweets.com/colors/brands/nba-com), Blueprint (https://brandsweets.com/palettes/technical#blueprint), Heatwave (https://brandsweets.com/palettes/warm#heatwave). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 6 real palettes, including Unity's brand system and Warp's brand system put Blue beside #39a6ea, as the supporting colour. Seen in: Unity (https://brandsweets.com/colors/brands/unity-com), Warp (https://brandsweets.com/colors/brands/warp-dev), Qualcomm (https://brandsweets.com/colors/brands/qualcomm-com), Readymag (https://brandsweets.com/colors/brands/readymag-com). — https://brandsweets.com/colors/blue
- **Dark Orange** #ff8c00 [pool] — Dark Orange shows up next to #39a6ea in 5 real palettes, including Elastic's brand system and Learning App, as the lead colour. Seen in: Elastic (https://brandsweets.com/colors/brands/elastic-co), Learning App (https://brandsweets.com/palettes/playful#learning-app), Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com), Playground (https://brandsweets.com/palettes/bold#playground). — https://brandsweets.com/colors/darkorange
- **Denim** #1560bd [pool] — Designers have shipped Denim with #39a6ea: 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), Gopro (https://brandsweets.com/colors/brands/gopro-com), Apple (https://brandsweets.com/colors/brands/apple-com). — https://brandsweets.com/colors/denim
- **Light Sky Blue** #87cefa [pool] — Light Sky Blue is paired with #39a6ea in 4 real palettes, including Calm's brand system and Salesforce's brand system, as the supporting colour. Seen in: Calm (https://brandsweets.com/colors/brands/calm-com), Salesforce (https://brandsweets.com/colors/brands/salesforce-com), Opensea (https://brandsweets.com/colors/brands/opensea-io), Netlify (https://brandsweets.com/colors/brands/netlify-com). — https://brandsweets.com/colors/lightskyblue

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

- On white (#ffffff): 2.69:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #147cbd (4.52:1); AA: background → #333333 (4.7:1); AAA: text → #0f5b8a (7.28:1); AAA: background → #0f0f0f (7.13:1)
- On black (#000000): 7.82:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Telegram** — primary #2aabee (Δ 1.38) — https://brandsweets.com/colors/brands/telegram-org

## Curated palettes containing it

- **Arctic** (clean, cool, minimal) — #0f1b2d, #7d93a8, #0ea5e9, #ffffff — Navy type on white with an ice-blue accent: crisp and corporate without going grey. — tool: https://brandsweets.com/palettes/new/0f1b2d-7d93a8-0ea5e9-ffffff — collection: https://brandsweets.com/palettes/clean

## 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/39a6ea-9cb0c4-df4e5d-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: "#39a6ea" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.