# #2157de

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

## Values

- Hex: `#2157de`
- RGB: rgb(33, 87, 222)
- HSL: hsl(223, 74%, 50%)
- OKLCH: oklch(0.511 0.214 263.8)
- Relative luminance: 0.1241
- Nearest named color: Bluetiful (#3c69e7, Δ 5.385) — https://brandsweets.com/colors/bluetiful
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/2157de

## Tints & shades

- Tints (toward white): #3767e1, #4e78e4, #5f86e7, #7597ea, #8ca7ee, #a2b8f1, #b8c9f4, #cad7f7, #e0e7fa, #f6f8fe
- Shades (toward black): #1e4ec8, #1b47b6, #183ea0, #15378e, #122f78, #0f2662, #0c1f50, #09173a, #061028, #030712

## Harmonies

- Complementary: #dea821
- Analogous: #21b5de, #4a21de
- Triadic: #de2157, #57de21
- Split-complementary: #de4a21, #b5de21
- Tetradic: #de21b5, #dea821, #21de4a

## Colors that go with #2157de

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 #2157de: softer than #000 and cool enough to feel like part of the same palette. Seen in: Campus (https://brandsweets.com/palettes/friendly#campus), UEFA (https://brandsweets.com/colors/brands/uefa-com), HP (https://brandsweets.com/colors/brands/hp-com), Zoom (https://brandsweets.com/colors/brands/zoom-us). — https://brandsweets.com/colors/charcoal
- **Amber** #ffbf00 [pool] — Amber is paired with #2157de in 9 real palettes, including Walmart's brand system and NBA's brand system, as the accent. Seen in: Walmart (https://brandsweets.com/colors/brands/walmart-com), NBA (https://brandsweets.com/colors/brands/nba-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org), Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 13 real palettes, including Headspace's brand system and Dropbox's brand system put Blue beside #2157de, as the accent. Seen in: Headspace (https://brandsweets.com/colors/brands/headspace-com), Dropbox (https://brandsweets.com/colors/brands/dropbox-com), Signal (https://brandsweets.com/colors/brands/signal-org), MongoDB (https://brandsweets.com/colors/brands/mongodb-com). — https://brandsweets.com/colors/blue
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #2157de: 10 real palettes, including NBA's brand system and Gopro's brand system, as the accent. Seen in: NBA (https://brandsweets.com/colors/brands/nba-com), Gopro (https://brandsweets.com/colors/brands/gopro-com), Roblox (https://brandsweets.com/colors/brands/roblox-com), Webflow (https://brandsweets.com/colors/brands/webflow-com). — https://brandsweets.com/colors/cornflowerblue
- **Crimson** #dc143c [pool] — Crimson is paired with #2157de in 18 real palettes, including Chase's brand system and Foot Locker's brand system, as the accent. Seen in: Chase (https://brandsweets.com/colors/brands/chase-com), Foot Locker (https://brandsweets.com/colors/brands/footlocker-com), Coinbase (https://brandsweets.com/colors/brands/coinbase), Toyota (https://brandsweets.com/colors/brands/toyota-com). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #2157de: 8 real palettes, including Elastic's brand system and Calm's brand system, as the supporting colour. Seen in: Elastic (https://brandsweets.com/colors/brands/elastic-co), Calm (https://brandsweets.com/colors/brands/calm-com), Venmo (https://brandsweets.com/colors/brands/venmo-com), Warp (https://brandsweets.com/colors/brands/warp-dev). — https://brandsweets.com/colors/deepskyblue
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #2157de: 9 real palettes, including Coursera's brand system and HashiCorp's brand system, as the supporting colour. Seen in: Coursera (https://brandsweets.com/colors/brands/coursera-org), HashiCorp (https://brandsweets.com/colors/brands/hashicorp-com), OnePlus (https://brandsweets.com/colors/brands/oneplus-com), Apple (https://brandsweets.com/colors/brands/apple-com). — https://brandsweets.com/colors/dodgerblue
- **Olive Green** #808000 [harmony: complementary] — Olive Green sits directly opposite #2157de 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/olive

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

- On white (#ffffff): 6.03:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #1e4ec8 (7.05:1)
- On black (#000000): 3.48:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #406ee2 (4.55:1); AA: background → #e0e0e0 (4.57:1); AAA: text → #7193ea (7.06:1)

## Brands using this color

- **Square** — secondary #005ad9 (Δ 1.516) — https://brandsweets.com/colors/brands/squareup-com
- **Walmart** — primary #0453e4 (Δ 1.85) — https://brandsweets.com/colors/brands/walmart-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/2157de-9ca3c4-df704e-211f2d-e9eff1?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: "#2157de" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.