# #3367d7

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

## Values

- Hex: `#3367d7`
- RGB: rgb(51, 103, 215)
- HSL: hsl(221, 67%, 52%)
- OKLCH: oklch(0.543 0.181 263)
- Relative luminance: 0.1531
- Nearest named color: Royal Blue (#4169e1, Δ 2.149) — https://brandsweets.com/colors/royalblue
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/3367d7

## Tints & shades

- Tints (toward white): #4876db, #5983de, #6e93e2, #7fa0e6, #95b0ea, #aabfee, #bbccf2, #d0dcf6, #e1e9f9, #f6f9fd
- Shades (toward black): #285ac8, #2351b3, #2049a2, #1c3f8d, #183677, #132c62, #0f234d, #0c1b3c, #081126, #030811

## Harmonies

- Complementary: #d7a333
- Analogous: #33b9d7, #5133d7
- Triadic: #d73367, #67d733
- Split-complementary: #d75133, #b9d733
- Tetradic: #d733b9, #d7a333, #33d751

## Colors that go with #3367d7

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 #3367d7: softer than #000 and cool enough to feel like part of the same palette. Seen in: Hinge (https://brandsweets.com/colors/brands/hinge-co), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com), Starlink (https://brandsweets.com/colors/brands/starlink-com), Disney (https://brandsweets.com/colors/brands/disney-com). — https://brandsweets.com/colors/charcoal
- **Sea Green** #2e8b57 [harmony, pool: triadic] — Sea Green completes a triad with #3367d7 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Subaru (https://brandsweets.com/colors/brands/subaru-com), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com), Netflix (https://brandsweets.com/colors/brands/netflix), Paramount+ (https://brandsweets.com/colors/brands/paramountplus-com). — https://brandsweets.com/colors/seagreen
- **Amber** #ffbf00 [pool] — Amber is paired with #3367d7 in 11 real palettes, including Wikipedia's brand system and NBA's brand system, as the accent. Seen in: Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org), NBA (https://brandsweets.com/colors/brands/nba-com), Walmart (https://brandsweets.com/colors/brands/walmart-com), Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 16 real palettes, including Pixar's brand system and BBC's brand system put Blue beside #3367d7, as the accent. Seen in: Pixar (https://brandsweets.com/colors/brands/pixar-com), BBC (https://brandsweets.com/colors/brands/bbc-com), Headspace (https://brandsweets.com/colors/brands/headspace-com), EA (https://brandsweets.com/colors/brands/ea-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #3367d7: 13 real palettes, including Unilever's brand system and Carrefour's brand system, as the lead colour. Seen in: Unilever (https://brandsweets.com/colors/brands/unilever-com), Carrefour (https://brandsweets.com/colors/brands/carrefour-com), Nokia (https://brandsweets.com/colors/brands/nokia-com), Intel (https://brandsweets.com/colors/brands/intel-com). — https://brandsweets.com/colors/cobalt
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #3367d7: 7 real palettes, including NBA's brand system and Coca-Cola's brand system, as the accent. Seen in: NBA (https://brandsweets.com/colors/brands/nba-com), Coca-Cola (https://brandsweets.com/colors/brands/coca-cola-com), Webflow (https://brandsweets.com/colors/brands/webflow-com), Gopro (https://brandsweets.com/colors/brands/gopro-com). — https://brandsweets.com/colors/cornflowerblue
- **Crimson** #dc143c [pool] — Crimson is paired with #3367d7 in 18 real palettes, including Foot Locker's brand system and Pizza Hut's brand system, as the supporting colour. Seen in: Foot Locker (https://brandsweets.com/colors/brands/footlocker-com), Pizza Hut (https://brandsweets.com/colors/brands/pizzahut-com), Netflix (https://brandsweets.com/colors/brands/netflix), Ulta Beauty (https://brandsweets.com/colors/brands/ulta-com). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #3367d7: 7 real palettes, including Astro's brand system and Calm's brand system, as the supporting colour. Seen in: Astro (https://brandsweets.com/colors/brands/astro-build), Calm (https://brandsweets.com/colors/brands/calm-com), Venmo (https://brandsweets.com/colors/brands/venmo-com), Elastic (https://brandsweets.com/colors/brands/elastic-co). — https://brandsweets.com/colors/deepskyblue

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

- On white (#ffffff): 5.17:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #2453b7 (7.01:1)
- On black (#000000): 4.06:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #3f70d9 (4.53:1); AA: background → #f0f0f0 (4.54:1); AAA: text → #7296e3 (7.19:1)

## Brands using this color

- **HashiCorp** — primary #2264d6 (Δ 1.568) — https://brandsweets.com/colors/brands/hashicorp-com
- **HashiCorp** — accent #2264d6 (Δ 1.568) — https://brandsweets.com/colors/brands/hashicorp-com
- **Loom** — primary #1868db (Δ 1.664) — https://brandsweets.com/colors/brands/loom-com
- **Loom** — secondary #1868db (Δ 1.664) — https://brandsweets.com/colors/brands/loom-com
- **Wikipedia** — secondary #3366cc (Δ 1.702) — https://brandsweets.com/colors/brands/wikipedia-org
- **Fitbit** — secondary #1967d2 (Δ 1.858) — https://brandsweets.com/colors/brands/fitbit-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/3367d7-9ca4c4-df6b4e-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: "#3367d7" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.