# #1d6bb4

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

## Values

- Hex: `#1d6bb4`
- RGB: rgb(29, 107, 180)
- HSL: hsl(209, 72%, 41%)
- OKLCH: oklch(0.52 0.136 251.3)
- Relative luminance: 0.1407
- Nearest named color: Brilliant Blue (#0075b3, Δ 2.86) — https://brandsweets.com/colors/brilliant-blue
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/1d6bb4

## Tints & shades

- Tints (toward white): #227bce, #2c88dd, #4796e1, #61a5e5, #7bb4ea, #91c1ed, #acd0f1, #c6dff6, #dcebf9, #f6fafe
- Shades (toward black): #1a61a2, #185995, #154e84, #134472, #103c65, #0e3253, #0b2742, #081d30, #061523, #030a12

## Harmonies

- Complementary: #b4661d
- Analogous: #1db4b1, #1d20b4
- Triadic: #b41d6b, #6bb41d
- Split-complementary: #b41d20, #b4b11d
- Tetradic: #b11db4, #b4661d, #20b41d

## Colors that go with #1d6bb4

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 #1d6bb4: softer than #000 and cool enough to feel like part of the same palette. Seen in: Amazon (https://brandsweets.com/colors/brands/amazon-com), 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). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: triadic] — Crimson completes a triad with #1d6bb4 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), State Farm (https://brandsweets.com/colors/brands/statefarm-com), Target : Expect More. Pay Less. (https://brandsweets.com/colors/brands/target-com), Pizza Hut (https://brandsweets.com/colors/brands/pizzahut-com). — https://brandsweets.com/colors/crimson
- **Sienna** #a0522d [harmony, pool: complementary] — Sienna sits directly opposite #1d6bb4 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Dyson (https://brandsweets.com/colors/brands/dyson-com). — https://brandsweets.com/colors/sienna
- **Amber** #ffbf00 [pool] — Amber is paired with #1d6bb4 in 8 real palettes, including McDonald's's brand system and Lemon Squeezy's brand system, as the lead colour. Seen in: McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com), Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 15 real palettes, including Activision's brand system and Pixar's brand system put Blue beside #1d6bb4, as the accent. Seen in: Activision (https://brandsweets.com/colors/brands/activision-com), Pixar (https://brandsweets.com/colors/brands/pixar-com), Tesco (https://brandsweets.com/colors/brands/tesco-com), BBC (https://brandsweets.com/colors/brands/bbc-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #1d6bb4: 12 real palettes, including Intel's brand system and General Mills's brand system, as the lead colour. Seen in: Intel (https://brandsweets.com/colors/brands/intel-com), General Mills (https://brandsweets.com/colors/brands/generalmills-com), Glacier (https://brandsweets.com/palettes/cool#glacier), Unilever (https://brandsweets.com/colors/brands/unilever-com). — https://brandsweets.com/colors/cobalt
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #1d6bb4: 5 real palettes, including Coca-Cola's brand system and NBA's brand system, as the supporting colour. Seen in: Coca-Cola (https://brandsweets.com/colors/brands/coca-cola-com), NBA (https://brandsweets.com/colors/brands/nba-com), Gopro (https://brandsweets.com/colors/brands/gopro-com), Webflow (https://brandsweets.com/colors/brands/webflow-com). — https://brandsweets.com/colors/cornflowerblue
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #1d6bb4: 7 real palettes, including Venmo's brand system and Deep Water, as the supporting colour. Seen in: Venmo (https://brandsweets.com/colors/brands/venmo-com), Deep Water (https://brandsweets.com/palettes/dark#deep-water), Astro (https://brandsweets.com/colors/brands/astro-build), Telegram (https://brandsweets.com/colors/brands/telegram-org). — https://brandsweets.com/colors/deepskyblue

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

- On white (#ffffff): 5.51:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #185995 (7.24:1)
- On black (#000000): 3.81:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #2178ca (4.6:1); AA: background → #ebebeb (4.62:1); AAA: text → #509be2 (7.13:1)

## Brands using this color

- **LEGO** — accent #006db7 (Δ 0.966) — https://brandsweets.com/colors/brands/lego-com
- **McDonald's** — accent #006bae (Δ 1.403) — https://brandsweets.com/colors/brands/mcdonalds-com
- **Activision** — secondary #0768af (Δ 1.48) — https://brandsweets.com/colors/brands/activision-com
- **Venmo** — accent #0070ba (Δ 1.581) — https://brandsweets.com/colors/brands/venmo-com
- **State Farm** — accent #0a70bc (Δ 1.694) — https://brandsweets.com/colors/brands/statefarm-com
- **Xbox** — secondary #0067b8 (Δ 1.766) — https://brandsweets.com/colors/brands/xbox-com
- **British Airways** — secondary #3468ad (Δ 1.787) — https://brandsweets.com/colors/brands/britishairways-com
- **The New York Times** — secondary #346eb7 (Δ 1.952) — https://brandsweets.com/colors/brands/nytimes-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/1d6bb4-9cacc4-df4e4e-1f212d-e9f1f1?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: "#1d6bb4" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.