# #4da9fe

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

## Values

- Hex: `#4da9fe`
- RGB: rgb(77, 169, 254)
- HSL: hsl(209, 99%, 65%)
- OKLCH: oklch(0.717 0.152 249.2)
- Relative luminance: 0.3711
- Nearest named color: Cerulean (#55aaee, Δ 2.486) — https://brandsweets.com/colors/cerulean
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/4da9fe

## Tints & shades

- Tints (toward white): #5db0fe, #71bafe, #80c1fe, #8fc9fe, #a4d3ff, #b3daff, #c2e1ff, #d1e9ff, #e6f3ff, #f5faff
- Shades (toward black): #2f9afe, #108bfe, #017cef, #016cd0, #015cb2, #014a8e, #013a70, #002a51, #001a33, #000b14

## Harmonies

- Complementary: #fea34d
- Analogous: #4dfefb, #4d50fe
- Triadic: #fe4da9, #a9fe4d
- Split-complementary: #fe4d50, #fefb4d
- Tetradic: #fb4dfe, #fea34d, #50fe4d

## Colors that go with #4da9fe

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 #4da9fe: 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), Lido (https://brandsweets.com/palettes/vivid#lido). — https://brandsweets.com/colors/charcoal
- **Amber** #ffbf00 [pool] — Amber is paired with #4da9fe 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] — 6 real palettes, including Warp's brand system and Unity's brand system put Blue beside #4da9fe, as the supporting colour. Seen in: Warp (https://brandsweets.com/colors/brands/warp-dev), Unity (https://brandsweets.com/colors/brands/unity-com), Canva (https://brandsweets.com/colors/brands/canva-com), Spotify (https://brandsweets.com/colors/brands/spotify). — https://brandsweets.com/colors/blue
- **Dark Orange** #ff8c00 [pool] — Dark Orange shows up next to #4da9fe in 5 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), Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com), PayPal (https://brandsweets.com/colors/brands/paypal-com). — https://brandsweets.com/colors/darkorange
- **Denim** #1560bd [pool] — Designers have shipped Denim with #4da9fe: 7 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 #4da9fe in 4 real palettes, including Miro's brand system and Prime Video's brand system, as the lead colour. Seen in: Miro (https://brandsweets.com/colors/brands/miro-com), Prime Video (https://brandsweets.com/colors/brands/primevideo-com), Star Wars (https://brandsweets.com/colors/brands/starwars-com), Phantom: The money app that'll take you placesLogo PhantomLogo PhantomLogo Phantom (https://brandsweets.com/colors/brands/phantom-com). — https://brandsweets.com/colors/gold
- **Medium Sea Green** #3cb371 [pool] — Medium Sea Green is paired with #4da9fe in 4 real palettes, including Terminal and Unity's brand system, as the lead colour. Seen in: Terminal (https://brandsweets.com/palettes/technical#terminal), Unity (https://brandsweets.com/colors/brands/unity-com), Spotify (https://brandsweets.com/colors/brands/spotify), Telehealth (https://brandsweets.com/palettes/modern#telehealth). — https://brandsweets.com/colors/mediumseagreen
- **Peru** #cd853f [harmony: complementary] — Peru sits directly opposite #4da9fe on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. — https://brandsweets.com/colors/peru

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

- On white (#ffffff): 2.49:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #0174df (4.6:1); AA: background → #383838 (4.7:1); AAA: text → #0157a7 (7.19:1); AAA: background → #171717 (7.19:1)
- On black (#000000): 8.42:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Blizzard** — primary #38a8ff (Δ 1.369) — https://brandsweets.com/colors/brands/blizzard-com
- **Render** — secondary #33acff (Δ 1.542) — https://brandsweets.com/colors/brands/render-com

## Curated palettes containing it

- **Terminal** (technical, dark, modern) — #3fb950, #58a6ff, #f778ba, #0b0f14, #e6edf3 — Green for success, blue for links, pink for emphasis — the dark-mode developer family, tuned to sit on near-black without glare. — tool: https://brandsweets.com/palettes/new/3fb950-58a6ff-f778ba-0b0f14-e6edf3 — collection: https://brandsweets.com/palettes/technical
- **Blue Mono** (monochrome, cool, clean, technical) — #1e40af, #60a5fa, #bfdbfe, #f8fafc, #172554 — One blue at four lightnesses — monochromatic in the colour-theory sense; the deep step is the text, the pale step the surface tint. — tool: https://brandsweets.com/palettes/new/1e40af-60a5fa-bfdbfe-f8fafc-172554 — collection: https://brandsweets.com/palettes/monochrome

## 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/4da9fe-9cacc4-df4e4e-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: "#4da9fe" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.