# #57387a

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

## Values

- Hex: `#57387a`
- RGB: rgb(87, 56, 122)
- HSL: hsl(268, 37%, 35%)
- OKLCH: oklch(0.409 0.11 303.6)
- Relative luminance: 0.0626
- Nearest named color: Heartless (#623b70, Δ 3.001) — https://brandsweets.com/colors/heartless
- Moods: cool, modern
- Page: https://brandsweets.com/colors/57387a

## Tints & shades

- Tints (toward white): #66428f, #774da8, #875eb5, #9673bf, #a98cca, #b8a1d4, #c8b6dd, #d8cbe7, #eae3f2, #faf8fc
- Shades (toward black): #503370, #482f65, #412a5b, #392550, #322046, #281a38, #20152d, #191023, #110b18, #0a060e

## Harmonies

- Complementary: #5b7a38
- Analogous: #383a7a, #78387a
- Triadic: #7a5738, #387a57
- Split-complementary: #7a7838, #3a7a38
- Tetradic: #7a383a, #5b7a38, #387a78

## Colors that go with #57387a

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 #57387a: softer than #000 and cool enough to feel like part of the same palette. Seen in: Hinge (https://brandsweets.com/colors/brands/hinge-co), Tumblr (https://brandsweets.com/colors/brands/tumblr-com), Harbour (https://brandsweets.com/palettes/cool#harbour), dbt Labs (https://brandsweets.com/colors/brands/getdbt-com). — https://brandsweets.com/colors/charcoal
- **Blue** #0000ff [pool] — 4 real palettes, including CVS's brand system and Alaska Airlines's brand system put Blue beside #57387a, as the supporting colour. Seen in: CVS (https://brandsweets.com/colors/brands/cvs-com), Alaska Airlines (https://brandsweets.com/colors/brands/alaskaair-com), Tesco (https://brandsweets.com/colors/brands/tesco-com), Zillow (https://brandsweets.com/colors/brands/zillow-com). — https://brandsweets.com/colors/blue
- **Crimson** #dc143c [pool] — Crimson is paired with #57387a in 7 real palettes, including Wells Fargo's brand system and Walgreens's brand system, as the lead colour. Seen in: Wells Fargo (https://brandsweets.com/colors/brands/wellsfargo-com), Walgreens (https://brandsweets.com/colors/brands/walgreens-com), Lenovo (https://brandsweets.com/colors/brands/lenovo-com), Marvel (https://brandsweets.com/colors/brands/marvel-com). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #57387a: 8 real palettes, including Hinge's brand system and HP's brand system, as the accent. Seen in: Hinge (https://brandsweets.com/colors/brands/hinge-co), HP (https://brandsweets.com/colors/brands/hp-com), Slack (https://brandsweets.com/colors/brands/slack-com), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com). — https://brandsweets.com/colors/denim
- **Midnight Blue** #191970 [pool] — 9 real palettes, including Microsoft's brand system and First Snow put Midnight Blue beside #57387a, as the accent. Seen in: Microsoft (https://brandsweets.com/colors/brands/microsoft-com), First Snow (https://brandsweets.com/palettes/cool#first-snow), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Gillette (https://brandsweets.com/colors/brands/gillette-com). — https://brandsweets.com/colors/midnightblue
- **Powder Blue** #b0e0e6 [pool] — Designers have shipped Powder Blue with #57387a: 5 real palettes, including First Snow and Glacier, as the accent. Seen in: First Snow (https://brandsweets.com/palettes/cool#first-snow), Glacier (https://brandsweets.com/palettes/cool#glacier), Macaron (https://brandsweets.com/palettes/light#macaron), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember). — https://brandsweets.com/colors/powderblue
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #57387a in 8 real palettes, including Nokia's brand system and Zoom's brand system, as the supporting colour. Seen in: Nokia (https://brandsweets.com/colors/brands/nokia-com), Zoom (https://brandsweets.com/colors/brands/zoom-us), Console Light (https://brandsweets.com/palettes/technical#console-light), Wayfair (https://brandsweets.com/colors/brands/wayfair-com). — https://brandsweets.com/colors/royalblue
- **Dark Olive Green** #556b2f [harmony: complementary] — Dark Olive Green sits directly opposite #57387a 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/darkolivegreen

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

- On white (#ffffff): 9.33:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.25:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #8c65b8 (4.67:1); AA: background → #b5b5b5 (4.55:1); AAA: text → #a98cca (7.29:1); AAA: background → #e0e0e0 (7.06:1)

## 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/57387a-b39cc4-dfdc4e-2c1f2d-e9eaf1?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: "#57387a" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.