# #1569ef

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

## Values

- Hex: `#1569ef`
- RGB: rgb(21, 105, 239)
- HSL: hsl(217, 87%, 51%)
- OKLCH: oklch(0.558 0.216 260.3)
- Relative luminance: 0.1649
- Nearest named color: Bluerocratic (#1f66ff, Δ 2.549) — https://brandsweets.com/colors/bluerocratic
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/1569ef

## Tints & shades

- Tints (toward white): #2d78f0, #4084f2, #5894f3, #70a3f5, #88b2f7, #9bbff8, #b3cefa, #cbddfb, #deeafd, #f5f9fe
- Shades (toward black): #0f5ddb, #0e55c8, #0c4bb0, #0b4199, #093986, #082f6e, #062556, #041a3e, #03122b, #010813

## Harmonies

- Complementary: #ef9b15
- Analogous: #15d5ef, #2f15ef
- Triadic: #ef1569, #69ef15
- Split-complementary: #ef2f15, #d5ef15
- Tetradic: #ef15d5, #ef9b15, #15ef2f

## Colors that go with #1569ef

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 #1569ef: softer than #000 and cool enough to feel like part of the same palette. Seen in: Docker (https://brandsweets.com/colors/brands/docker-com), Zoom (https://brandsweets.com/colors/brands/zoom-us), Disney (https://brandsweets.com/colors/brands/disney-com), Campus (https://brandsweets.com/palettes/friendly#campus). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: triadic] — Crimson completes a triad with #1569ef — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Chase (https://brandsweets.com/colors/brands/chase-com), Behance (https://brandsweets.com/colors/brands/behance-net), WWE (https://brandsweets.com/colors/brands/wwe-com), Toyota (https://brandsweets.com/colors/brands/toyota-com). — https://brandsweets.com/colors/crimson
- **Amber** #ffbf00 [pool] — Amber is paired with #1569ef in 10 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), Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 14 real palettes, including EA's brand system and MongoDB's brand system put Blue beside #1569ef, as the supporting colour. Seen in: EA (https://brandsweets.com/colors/brands/ea-com), MongoDB (https://brandsweets.com/colors/brands/mongodb-com), BBC (https://brandsweets.com/colors/brands/bbc-com), Headspace (https://brandsweets.com/colors/brands/headspace-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #1569ef: 13 real palettes, including Nokia's brand system and Carrefour's brand system, as the lead colour. Seen in: Nokia (https://brandsweets.com/colors/brands/nokia-com), Carrefour (https://brandsweets.com/colors/brands/carrefour-com), Behance (https://brandsweets.com/colors/brands/behance-net), Nivea (https://brandsweets.com/colors/brands/nivea-com). — https://brandsweets.com/colors/cobalt
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #1569ef: 6 real palettes, including Webflow's brand system and Roblox's brand system, as the accent. Seen in: Webflow (https://brandsweets.com/colors/brands/webflow-com), Roblox (https://brandsweets.com/colors/brands/roblox-com), NBA (https://brandsweets.com/colors/brands/nba-com), Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social). — https://brandsweets.com/colors/cornflowerblue
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #1569ef: 7 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), Patreon (https://brandsweets.com/colors/brands/patreon-com), Astro (https://brandsweets.com/colors/brands/astro-build). — https://brandsweets.com/colors/deepskyblue
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #1569ef: 8 real palettes, including OnePlus's brand system and ASUS's brand system, as the supporting colour. Seen in: OnePlus (https://brandsweets.com/colors/brands/oneplus-com), ASUS (https://brandsweets.com/colors/brands/asus-com), HashiCorp (https://brandsweets.com/colors/brands/hashicorp-com), PostHog (https://brandsweets.com/colors/brands/posthog-com). — https://brandsweets.com/colors/dodgerblue

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

- On white (#ffffff): 4.88:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #0d51bf (7.13:1)
- On black (#000000): 4.3:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #1f6fef (4.58:1); AA: background → #f7f7f7 (4.56:1); AAA: text → #5d97f4 (7.2:1)

## Brands using this color

- **Sephora** — secondary #136bea (Δ 0.912) — https://brandsweets.com/colors/brands/sephora-com
- **GEICO** — secondary #026df1 (Δ 0.979) — https://brandsweets.com/colors/brands/geico-com
- **Webflow** — primary #146cf4 (Δ 1.029) — https://brandsweets.com/colors/brands/webflow-com
- **Wayfair** — secondary #1364f1 (Δ 1.244) — https://brandsweets.com/colors/brands/wayfair-com
- **Nokia** — secondary #0065ed (Δ 1.264) — https://brandsweets.com/colors/brands/nokia-com
- **Ubisoft** — accent #006ef5 (Δ 1.44) — https://brandsweets.com/colors/brands/ubisoft-com
- **EA** — accent #0070f3 (Δ 1.715) — https://brandsweets.com/colors/brands/ea-com
- **Vercel** — accent #0070f3 (Δ 1.715) — https://brandsweets.com/colors/brands/vercel
- **MongoDB** — secondary #006cfa (Δ 1.777) — https://brandsweets.com/colors/brands/mongodb-com
- **BBC** — secondary #0071f1 (Δ 1.89) — https://brandsweets.com/colors/brands/bbc-com

## Curated palettes containing it

- **Console Light** (technical, clean, light) — #2563eb, #52525b, #16a34a, #fafafa, #18181b — A sober docs palette: one blue for interactive, one green for success, zinc greys for everything else. — tool: https://brandsweets.com/palettes/new/2563eb-52525b-16a34a-fafafa-18181b — collection: https://brandsweets.com/palettes/technical
- **Slate Workspace** (minimal, cool, clean, modern) — #0f172a, #64748b, #2563eb, #f8fafc — Slate on slate with a single blue — the productivity-app look where the interface disappears behind the work. — tool: https://brandsweets.com/palettes/new/0f172a-64748b-2563eb-f8fafc — collection: https://brandsweets.com/palettes/minimal
- **Telehealth** (modern, cool, friendly) — #2563eb, #93c5fd, #16a34a, #ffffff, #14213d — Friendly blue with a soft tint and a green all-clear — approachable care with a tech backbone. — tool: https://brandsweets.com/palettes/new/2563eb-93c5fd-16a34a-ffffff-14213d — collection: https://brandsweets.com/palettes/modern

## 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/1569ef-9ca7c4-df624e-201f2d-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: "#1569ef" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.