# #3554f3

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

## Values

- Hex: `#3554f3`
- RGB: rgb(53, 84, 243)
- HSL: hsl(230, 89%, 58%)
- OKLCH: oklch(0.531 0.239 268)
- Relative luminance: 0.1357
- Nearest named color: Bluerocratic (#1f66ff, Δ 4.21) — https://brandsweets.com/colors/bluerocratic
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/3554f3

## Tints & shades

- Tints (toward white): #4865f4, #5b75f5, #6e85f7, #8295f8, #95a6f9, #a8b6fa, #bcc6fb, #cfd6fc, #e2e7fd, #f5f7fe
- Shades (toward black): #1c40f2, #0d31e3, #0c2cca, #0a25ae, #092095, #071b7d, #061560, #041048, #03092b, #010413

## Harmonies

- Complementary: #f3d335
- Analogous: #35b4f3, #7435f3
- Triadic: #f33554, #54f335
- Split-complementary: #f37435, #b4f335
- Tetradic: #f335b4, #f3d335, #35f374

## Colors that go with #3554f3

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 #3554f3: softer than #000 and cool enough to feel like part of the same palette. Seen in: Zoom (https://brandsweets.com/colors/brands/zoom-us), Docker (https://brandsweets.com/colors/brands/docker-com), Campus (https://brandsweets.com/palettes/friendly#campus), UEFA (https://brandsweets.com/colors/brands/uefa-com). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: triadic] — Crimson completes a triad with #3554f3 — 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), Toyota (https://brandsweets.com/colors/brands/toyota-com), Coinbase (https://brandsweets.com/colors/brands/coinbase), WWE (https://brandsweets.com/colors/brands/wwe-com). — https://brandsweets.com/colors/crimson
- **Amber** #ffbf00 [pool] — Amber is paired with #3554f3 in 7 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), Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 9 real palettes, including Signal's brand system and Headspace's brand system put Blue beside #3554f3, as the supporting colour. Seen in: Signal (https://brandsweets.com/colors/brands/signal-org), Headspace (https://brandsweets.com/colors/brands/headspace-com), Dropbox (https://brandsweets.com/colors/brands/dropbox-com), MongoDB (https://brandsweets.com/colors/brands/mongodb-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #3554f3: 13 real palettes, including Nokia's brand system and NHL's brand system, as the lead colour. Seen in: Nokia (https://brandsweets.com/colors/brands/nokia-com), NHL (https://brandsweets.com/colors/brands/nhl-com), Nivea (https://brandsweets.com/colors/brands/nivea-com), Behance (https://brandsweets.com/colors/brands/behance-net). — https://brandsweets.com/colors/cobalt
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #3554f3: 9 real palettes, including Roblox's brand system and Webflow's brand system, as the supporting colour. Seen in: Roblox (https://brandsweets.com/colors/brands/roblox-com), Webflow (https://brandsweets.com/colors/brands/webflow-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 #3554f3: 5 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), Warp (https://brandsweets.com/colors/brands/warp-dev), Astro (https://brandsweets.com/colors/brands/astro-build). — https://brandsweets.com/colors/deepskyblue
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #3554f3: 9 real palettes, including OnePlus's brand system and HashiCorp's brand system, as the supporting colour. Seen in: OnePlus (https://brandsweets.com/colors/brands/oneplus-com), HashiCorp (https://brandsweets.com/colors/brands/hashicorp-com), Coursera (https://brandsweets.com/colors/brands/coursera-org), ASUS (https://brandsweets.com/colors/brands/asus-com). — https://brandsweets.com/colors/dodgerblue

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

- On white (#ffffff): 5.65:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #183cf2 (7.08:1)
- On black (#000000): 3.71:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #4d69f5 (4.65:1); AA: background → #e6e6e6 (4.53:1); AAA: text → #7d91f7 (7.27:1)

## Brands using this color

- **Grafana Labs** — primary #1b55f5 (Δ 1.839) — https://brandsweets.com/colors/brands/grafana-com
- **Grafana Labs** — accent #1b55f5 (Δ 1.839) — https://brandsweets.com/colors/brands/grafana-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/3554f3-9c9ec4-df814e-231f2d-e9eef1?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: "#3554f3" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.