# #40a4dd

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

## Values

- Hex: `#40a4dd`
- RGB: rgb(64, 164, 221)
- HSL: hsl(202, 70%, 56%)
- OKLCH: oklch(0.685 0.124 237.7)
- Relative luminance: 0.3286
- Nearest named color: Cousteau (#55a9d6, Δ 2.558) — https://brandsweets.com/colors/cousteau
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/40a4dd

## Tints & shades

- Tints (toward white): #52ace0, #63b4e3, #79bfe7, #8ac7ea, #9bcfed, #add8f0, #bee0f4, #d4eaf7, #e5f3fa, #f6fbfd
- Shades (toward black): #2b99da, #238bc7, #1f79ad, #1b6a98, #175b82, #134c6c, #0f3d57, #0b2a3d, #071b27, #030c11

## Harmonies

- Complementary: #dd7a40
- Analogous: #40ddc8, #4055dd
- Triadic: #dd40a4, #a4dd40
- Split-complementary: #dd4055, #ddc840
- Tetradic: #c840dd, #dd7a40, #55dd40

## Colors that go with #40a4dd

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 #40a4dd: softer than #000 and cool enough to feel like part of the same palette. Seen in: Lamborghini (https://brandsweets.com/colors/brands/lamborghini-com), Lido (https://brandsweets.com/palettes/vivid#lido), Blizzard (https://brandsweets.com/colors/brands/blizzard-com), Lagoon (https://brandsweets.com/palettes/vivid#lagoon). — https://brandsweets.com/colors/charcoal
- **Peru** #cd853f [harmony, pool: complementary] — Peru sits directly opposite #40a4dd 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), Paper & Pine (https://brandsweets.com/palettes/minimal#paper-and-pine). — https://brandsweets.com/colors/peru
- **Amber** #ffbf00 [pool] — Amber is paired with #40a4dd 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 #40a4dd, 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 #40a4dd 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 #40a4dd: 7 real palettes, including Coca-Cola's brand system and Gopro's brand system, as the accent. Seen in: Coca-Cola (https://brandsweets.com/colors/brands/coca-cola-com), Gopro (https://brandsweets.com/colors/brands/gopro-com), Venmo (https://brandsweets.com/colors/brands/venmo-com), Apple (https://brandsweets.com/colors/brands/apple-com). — https://brandsweets.com/colors/denim
- **Medium Sea Green** #3cb371 [pool] — Medium Sea Green is paired with #40a4dd 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), Olympics (https://brandsweets.com/colors/brands/olympics-com), Spotify (https://brandsweets.com/colors/brands/spotify). — https://brandsweets.com/colors/mediumseagreen
- **Midnight Blue** #191970 [pool] — 8 real palettes, including SoFi's brand system and Confluent's brand system put Midnight Blue beside #40a4dd, as the accent. Seen in: SoFi (https://brandsweets.com/colors/brands/sofi-com), Confluent (https://brandsweets.com/colors/brands/confluent-io), Kraken (https://brandsweets.com/colors/brands/kraken-com), Blue Mono (https://brandsweets.com/palettes/cool#blue-mono). — https://brandsweets.com/colors/midnightblue

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

- On white (#ffffff): 2.77:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #1f7cb2 (4.58:1); AA: background → #333333 (4.56:1); AAA: text → #185e86 (7.04:1); AAA: background → #0d0d0d (7.01:1)
- On black (#000000): 7.57:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Lamborghini** — secondary #29abe2 (Δ 1.987) — https://brandsweets.com/colors/brands/lamborghini-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/40a4dd-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: "#40a4dd" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.