# #1263d3

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

## Values

- Hex: `#1263d3`
- RGB: rgb(18, 99, 211)
- HSL: hsl(215, 84%, 45%)
- OKLCH: oklch(0.523 0.188 258.8)
- Relative luminance: 0.1376
- Nearest named color: Denim (#1560bd, Δ 3.467) — https://brandsweets.com/colors/denim
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/1263d3

## Tints & shades

- Tints (toward white): #146eeb, #317fed, #488eef, #5f9cf1, #7caef4, #93bcf6, #abcbf8, #c2d9fa, #deebfc, #f6f9fe
- Shades (toward black): #115ac0, #0f51ae, #0d489b, #0c4088, #0a3775, #082c5e, #07234b, #051a38, #031226, #020913

## Harmonies

- Complementary: #d38312
- Analogous: #12c3d3, #2212d3
- Triadic: #d31263, #63d312
- Split-complementary: #d32212, #c3d312
- Tetradic: #d312c3, #d38312, #12d322

## Colors that go with #1263d3

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 #1263d3: 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), Hasbro (https://brandsweets.com/colors/brands/hasbro-com). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: triadic] — Crimson completes a triad with #1263d3 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. 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
- **Sienna** #a0522d [harmony, pool: complementary] — Sienna sits directly opposite #1263d3 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 #1263d3 in 9 real palettes, including NBA's brand system and Wikipedia's brand system, as the lead colour. Seen in: NBA (https://brandsweets.com/colors/brands/nba-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org), 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] — 15 real palettes, including Pixar's brand system and Headspace's brand system put Blue beside #1263d3, as the accent. Seen in: Pixar (https://brandsweets.com/colors/brands/pixar-com), Headspace (https://brandsweets.com/colors/brands/headspace-com), BBC (https://brandsweets.com/colors/brands/bbc-com), EA (https://brandsweets.com/colors/brands/ea-com). — https://brandsweets.com/colors/blue
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #1263d3: 8 real palettes, including NBA's brand system and Gopro's brand system, as the accent. Seen in: NBA (https://brandsweets.com/colors/brands/nba-com), Gopro (https://brandsweets.com/colors/brands/gopro-com), Coca-Cola (https://brandsweets.com/colors/brands/coca-cola-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 #1263d3: 7 real palettes, including Venmo's brand system and Astro's brand system, as the supporting colour. Seen in: Venmo (https://brandsweets.com/colors/brands/venmo-com), Astro (https://brandsweets.com/colors/brands/astro-build), Elastic (https://brandsweets.com/colors/brands/elastic-co), Deep Water (https://brandsweets.com/palettes/dark#deep-water). — https://brandsweets.com/colors/deepskyblue
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #1263d3: 8 real palettes, including HashiCorp's brand system and Apple's brand system, as the supporting colour. Seen in: HashiCorp (https://brandsweets.com/colors/brands/hashicorp-com), Apple (https://brandsweets.com/colors/brands/apple-com), ASUS (https://brandsweets.com/colors/brands/asus-com), Coursera (https://brandsweets.com/colors/brands/coursera-org). — https://brandsweets.com/colors/dodgerblue

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

- On white (#ffffff): 5.6:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #1053b2 (7.24:1)
- On black (#000000): 3.75:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #1971eb (4.6:1); AA: background → #e8e8e8 (4.57:1); AAA: text → #5696f0 (7.02:1)

## Brands using this color

- **Postman** — accent #0265d2 (Δ 0.606) — https://brandsweets.com/colors/brands/postman-com
- **Box** — primary #0061d5 (Δ 0.831) — https://brandsweets.com/colors/brands/box-com
- **Box** — secondary #0061d5 (Δ 0.831) — https://brandsweets.com/colors/brands/box-com
- **HashiCorp** — primary #2264d6 (Δ 0.986) — https://brandsweets.com/colors/brands/hashicorp-com
- **HashiCorp** — accent #2264d6 (Δ 0.986) — https://brandsweets.com/colors/brands/hashicorp-com
- **Strava** — accent #0060d0 (Δ 1.112) — https://brandsweets.com/colors/brands/strava-com
- **Fitbit** — secondary #1967d2 (Δ 1.148) — https://brandsweets.com/colors/brands/fitbit-com
- **YouTube** — accent #065fd4 (Δ 1.158) — https://brandsweets.com/colors/brands/youtube-com
- **NBA** — secondary #0268d6 (Δ 1.284) — https://brandsweets.com/colors/brands/nba-com
- **Apple** — accent #0066cc (Δ 1.424) — https://brandsweets.com/colors/brands/apple-com
- **Dyson** — accent #0066cc (Δ 1.424) — https://brandsweets.com/colors/brands/dyson-com
- **Unilever** — accent #0066cc (Δ 1.424) — https://brandsweets.com/colors/brands/unilever-com
- **Philips** — secondary #0b5ed7 (Δ 1.475) — https://brandsweets.com/colors/brands/philips-com
- **Khan Academy** — accent #0069d6 (Δ 1.52) — https://brandsweets.com/colors/brands/khanacademy-org
- **Nissan** — accent #005fcc (Δ 1.652) — https://brandsweets.com/colors/brands/nissanusa-com
- **GitHub** — accent #0969da (Δ 1.777) — https://brandsweets.com/colors/brands/github
- **Loom** — primary #1868db (Δ 1.799) — https://brandsweets.com/colors/brands/loom-com
- **Loom** — secondary #1868db (Δ 1.799) — https://brandsweets.com/colors/brands/loom-com
- **Foot Locker** — accent #036ad8 (Δ 1.844) — https://brandsweets.com/colors/brands/footlocker-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/1263d3-9ca8c4-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: "#1263d3" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.