# #a3c9fa

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

## Values

- Hex: `#a3c9fa`
- RGB: rgb(163, 201, 250)
- HSL: hsl(214, 90%, 81%)
- OKLCH: oklch(0.826 0.08 255)
- Relative luminance: 0.5646
- Nearest named color: Baby Blue (#a2cffe, Δ 1.526) — https://brandsweets.com/colors/baby-blue
- Moods: cool, vivid, light, technical, modern, clean
- Page: https://brandsweets.com/colors/a3c9fa

## Tints & shades

- Tints (toward white): #adcefb, #b1d1fb, #bbd7fb, #c5ddfc, #cfe2fc, #d3e5fd, #ddebfd, #e7f1fe, #ecf4fe, #f5f9fe
- Shades (toward black): #7cb2f8, #5a9ef6, #3487f4, #0d70f2, #0b60d0, #094faa, #073d83, #052b5c, #031b3a, #010913

## Harmonies

- Complementary: #fad4a3
- Analogous: #a3f4fa, #a9a3fa
- Triadic: #faa3c9, #c9faa3
- Split-complementary: #faa9a3, #f4faa3
- Tetradic: #faa3f4, #fad4a3, #a3faa9

## Colors that go with #a3c9fa

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 #a3c9fa: softer than #000 and cool enough to feel like part of the same palette. Seen in: Coastal (https://brandsweets.com/palettes/cool#coastal), Boeing (https://brandsweets.com/colors/brands/boeing-com), Harbour (https://brandsweets.com/palettes/cool#harbour), Dusty Blue (https://brandsweets.com/palettes/cool#dusty-blue). — https://brandsweets.com/colors/charcoal
- **Deep Sky Blue** #00bfff [harmony, pool: analogous] — Deep Sky Blue is #a3c9fa's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Max (https://brandsweets.com/colors/brands/max-com), Mistral AI (https://brandsweets.com/colors/brands/mistral-ai), Salesforce (https://brandsweets.com/colors/brands/salesforce-com), Calendly (https://brandsweets.com/colors/brands/calendly-com). — https://brandsweets.com/colors/deepskyblue
- **Blue** #0000ff [pool] — 4 real palettes, including Uber's brand system and Warp's brand system put Blue beside #a3c9fa, as the accent. Seen in: Uber (https://brandsweets.com/colors/brands/uber-com), Warp (https://brandsweets.com/colors/brands/warp-dev), Canva (https://brandsweets.com/colors/brands/canva-com), Spotify (https://brandsweets.com/colors/brands/spotify). — https://brandsweets.com/colors/blue
- **Crimson** #dc143c [pool] — Crimson is paired with #a3c9fa in 5 real palettes, including Frost & Ember and JBL's brand system, as the accent. Seen in: Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember), JBL (https://brandsweets.com/colors/brands/jbl-com), Tiffany & Co. (https://brandsweets.com/colors/brands/tiffany-com), Cartier (https://brandsweets.com/colors/brands/cartier-com). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #a3c9fa: 6 real palettes, including Nikon's brand system and UEFA's brand system, as the supporting colour. Seen in: Nikon (https://brandsweets.com/colors/brands/nikon-com), UEFA (https://brandsweets.com/colors/brands/uefa-com), Venmo (https://brandsweets.com/colors/brands/venmo-com), Coca-Cola (https://brandsweets.com/colors/brands/coca-cola-com). — https://brandsweets.com/colors/denim
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #a3c9fa: 4 real palettes, including Opensea's brand system and Patreon's brand system, as the lead colour. Seen in: Opensea (https://brandsweets.com/colors/brands/opensea-io), Patreon (https://brandsweets.com/colors/brands/patreon-com), Venmo (https://brandsweets.com/colors/brands/venmo-com), Figma (https://brandsweets.com/colors/brands/figma). — https://brandsweets.com/colors/dodgerblue
- **Midnight Blue** #191970 [pool] — 6 real palettes, including Telehealth and Lavender Milk put Midnight Blue beside #a3c9fa, as the text colour against it. Seen in: Telehealth (https://brandsweets.com/palettes/modern#telehealth), Lavender Milk (https://brandsweets.com/palettes/light#lavender-milk), Blue Mono (https://brandsweets.com/palettes/cool#blue-mono), Lavender Haze (https://brandsweets.com/palettes/playful#lavender-haze). — https://brandsweets.com/colors/midnightblue
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #a3c9fa in 5 real palettes, including Telehealth and 1password's brand system, as the lead colour. Seen in: Telehealth (https://brandsweets.com/palettes/modern#telehealth), 1password (https://brandsweets.com/colors/brands/1password-com), Sephora (https://brandsweets.com/colors/brands/sephora-com), NBA (https://brandsweets.com/colors/brands/nba-com). — https://brandsweets.com/colors/royalblue

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

- On white (#ffffff): 1.71:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #0d70f2 (4.55:1); AA: background → #525252 (4.57:1); AAA: text → #0953b3 (7.24:1); AAA: background → #363636 (7.07:1)
- On black (#000000): 12.29:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Sentry** — accent #9ecbff (Δ 0.868) — https://brandsweets.com/colors/brands/sentry-io

## Fonts for this mood

- technical: https://brandsweets.com/fonts/mood/technical
- modern: https://brandsweets.com/fonts/mood/modern
- clean: https://brandsweets.com/fonts/mood/clean

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/a3c9fa-9ca9c4-df5a4e-1f1f2d-e9f0f1?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: "#a3c9fa" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.