# #337de6

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

## Values

- Hex: `#337de6`
- RGB: rgb(51, 125, 230)
- HSL: hsl(215, 78%, 55%)
- OKLCH: oklch(0.599 0.175 257.9)
- Relative luminance: 0.2108
- Nearest named color: Blue Öyster Cult (#5577ee, Δ 3.46) — https://brandsweets.com/colors/blue-oyster-cult
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/337de6

## Tints & shades

- Tints (toward white): #4589e8, #5c97eb, #6ea3ed, #80aeef, #97bdf2, #a9c8f4, #bbd4f7, #cddff9, #e4eefc, #f6f9fe
- Shades (toward black): #1c6fe3, #1964cc, #1659b6, #144e9f, #114388, #0d356d, #0b2a56, #081f40, #051429, #020912

## Harmonies

- Complementary: #e69b33
- Analogous: #33d7e6, #4233e6
- Triadic: #e6337d, #7de633
- Split-complementary: #e64233, #d7e633
- Tetradic: #e633d7, #e69b33, #33e642

## Colors that go with #337de6

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 #337de6: softer than #000 and cool enough to feel like part of the same palette. Seen in: Disney (https://brandsweets.com/colors/brands/disney-com), Docker (https://brandsweets.com/colors/brands/docker-com), Hinge (https://brandsweets.com/colors/brands/hinge-co), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: triadic] — Crimson completes a triad with #337de6 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Pizza Hut (https://brandsweets.com/colors/brands/pizzahut-com), Foot Locker (https://brandsweets.com/colors/brands/footlocker-com), NASCAR (https://brandsweets.com/colors/brands/nascar-com), Behance (https://brandsweets.com/colors/brands/behance-net). — https://brandsweets.com/colors/crimson
- **Copper** #b87333 [harmony, pool: complementary] — Copper sits directly opposite #337de6 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Notion (https://brandsweets.com/colors/brands/notion). — https://brandsweets.com/colors/copper
- **Amber** #ffbf00 [pool] — Amber is paired with #337de6 in 12 real palettes, including Google's brand system and Walmart's brand system, as the accent. Seen in: Google (https://brandsweets.com/colors/brands/google-com), Walmart (https://brandsweets.com/colors/brands/walmart-com), Heatwave (https://brandsweets.com/palettes/warm#heatwave), NBA (https://brandsweets.com/colors/brands/nba-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 14 real palettes, including Readymag's brand system and Cargo's brand system put Blue beside #337de6, as the supporting colour. Seen in: Readymag (https://brandsweets.com/colors/brands/readymag-com), Cargo (https://brandsweets.com/colors/brands/cargo-site), Samsung (https://brandsweets.com/colors/brands/samsung-com), BBC (https://brandsweets.com/colors/brands/bbc-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #337de6: 12 real palettes, including Carrefour's brand system and Intel's brand system, as the accent. Seen in: Carrefour (https://brandsweets.com/colors/brands/carrefour-com), Intel (https://brandsweets.com/colors/brands/intel-com), General Mills (https://brandsweets.com/colors/brands/generalmills-com), Behance (https://brandsweets.com/colors/brands/behance-net). — https://brandsweets.com/colors/cobalt
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #337de6: 9 real palettes, including Patreon's brand system and Astro's brand system, as the supporting colour. Seen in: Patreon (https://brandsweets.com/colors/brands/patreon-com), Astro (https://brandsweets.com/colors/brands/astro-build), Venmo (https://brandsweets.com/colors/brands/venmo-com), Telegram (https://brandsweets.com/colors/brands/telegram-org). — https://brandsweets.com/colors/deepskyblue
- **Denim** #1560bd [pool] — Designers have shipped Denim with #337de6: 18 real palettes, including Motorola's brand system and Guinness's brand system, as the accent. Seen in: Motorola (https://brandsweets.com/colors/brands/motorola-com), Guinness (https://brandsweets.com/colors/brands/guinness-com), Xbox (https://brandsweets.com/colors/brands/xbox-com), Coursera (https://brandsweets.com/colors/brands/coursera-org). — https://brandsweets.com/colors/denim

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

- On white (#ffffff): 4.03:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #2172e4 (4.57:1); AA: background → #141414 (4.58:1); AAA: text → #1554ac (7.25:1)
- On black (#000000): 5.22:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #5c97eb (7.08:1)

## Brands using this color

- **Notion** — accent #2383e2 (Δ 1.858) — https://brandsweets.com/colors/brands/notion

## 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/337de6-9ca8c4-df5d4e-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: "#337de6" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.