# #57a3cb

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

## Values

- Hex: `#57a3cb`
- RGB: rgb(87, 163, 203)
- HSL: hsl(201, 53%, 57%)
- OKLCH: oklch(0.683 0.096 233.5)
- Relative luminance: 0.3253
- Nearest named color: Cousteau (#55a9d6, Δ 2.008) — https://brandsweets.com/colors/cousteau
- Moods: cool, modern
- Page: https://brandsweets.com/colors/57a3cb

## Tints & shades

- Tints (toward white): #67abd0, #76b4d5, #86bdda, #96c5df, #a9d0e5, #b9d8e9, #c8e1ee, #d8eaf3, #e8f2f8, #f7fbfd
- Shades (toward black): #4498c5, #3788b3, #3179a0, #2b6a8c, #255c79, #1e4a62, #183b4e, #122c3b, #0b1b23, #050c10

## Harmonies

- Complementary: #cb8057
- Analogous: #57cbba, #5769cb
- Triadic: #cb57a3, #a3cb57
- Split-complementary: #cb5769, #cbba57
- Tetradic: #ba57cb, #cb8057, #69cb57

## Colors that go with #57a3cb

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 #57a3cb: softer than #000 and cool enough to feel like part of the same palette. Seen in: Lido (https://brandsweets.com/palettes/vivid#lido), Lamborghini (https://brandsweets.com/colors/brands/lamborghini-com), Lagoon (https://brandsweets.com/palettes/vivid#lagoon), Dusty Blue (https://brandsweets.com/palettes/cool#dusty-blue). — https://brandsweets.com/colors/charcoal
- **Peru** #cd853f [harmony, pool: complementary] — Peru sits directly opposite #57a3cb 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 #57a3cb in 7 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), Beach Hut (https://brandsweets.com/palettes/light#beach-hut). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 6 real palettes, including Canva's brand system and Warp's brand system put Blue beside #57a3cb, as the accent. Seen in: Canva (https://brandsweets.com/colors/brands/canva-com), Warp (https://brandsweets.com/colors/brands/warp-dev), Qualcomm (https://brandsweets.com/colors/brands/qualcomm-com), Unity (https://brandsweets.com/colors/brands/unity-com). — https://brandsweets.com/colors/blue
- **Denim** #1560bd [pool] — Designers have shipped Denim with #57a3cb: 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), Dusk (https://brandsweets.com/palettes/cool#dusk), Open House (https://brandsweets.com/palettes/clean#open-house). — https://brandsweets.com/colors/denim
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #57a3cb: 5 real palettes, including Venmo's brand system and Figma's brand system, as the lead colour. Seen in: Venmo (https://brandsweets.com/colors/brands/venmo-com), Figma (https://brandsweets.com/colors/brands/figma), Patreon (https://brandsweets.com/colors/brands/patreon-com), Studio Grey (https://brandsweets.com/palettes/minimal#studio-grey). — https://brandsweets.com/colors/dodgerblue
- **Medium Sea Green** #3cb371 [pool] — Medium Sea Green is paired with #57a3cb 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] — 9 real palettes, including Confluent's brand system and SoFi's brand system put Midnight Blue beside #57a3cb, as the lead colour. Seen in: Confluent (https://brandsweets.com/colors/brands/confluent-io), SoFi (https://brandsweets.com/colors/brands/sofi-com), Ford (https://brandsweets.com/colors/brands/ford-com), First Snow (https://brandsweets.com/palettes/cool#first-snow). — https://brandsweets.com/colors/midnightblue

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

- On white (#ffffff): 2.8:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #327ca4 (4.61:1); AA: background → #333333 (4.52:1); AAA: text → #255c79 (7.28:1); AAA: background → #0a0a0a (7.08:1)
- On black (#000000): 7.51:1 — AA pass, AA-large pass, AAA pass

## Fonts for this mood

- 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/57a3cb-9cb1c4-df4e62-1f222d-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: "#57a3cb" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.