# #173fde

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

## Values

- Hex: `#173fde`
- RGB: rgb(23, 63, 222)
- HSL: hsl(228, 81%, 48%)
- OKLCH: oklch(0.468 0.242 265.3)
- Relative luminance: 0.0901
- Nearest named color: Bluebonnet (#1c1cf0, Δ 4.856) — https://brandsweets.com/colors/bluebonnet
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/173fde

## Tints & shades

- Tints (toward white): #264de8, #3d60eb, #5473ed, #6b86ef, #8299f2, #99acf4, #b1bff7, #c8d2f9, #dfe4fc, #f6f7fe
- Shades (toward black): #153acb, #1333b4, #112ea2, #0f278a, #0d2278, #0b1d66, #08164e, #06113c, #040a25, #020512

## Harmonies

- Complementary: #deb617
- Analogous: #17a2de, #5317de
- Triadic: #de173f, #3fde17
- Split-complementary: #de5317, #a2de17
- Tetradic: #de17a2, #deb617, #17de53

## Colors that go with #173fde

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 #173fde: softer than #000 and cool enough to feel like part of the same palette. Seen in: HP (https://brandsweets.com/colors/brands/hp-com), Campus (https://brandsweets.com/palettes/friendly#campus), UEFA (https://brandsweets.com/colors/brands/uefa-com), Alaska Airlines (https://brandsweets.com/colors/brands/alaskaair-com). — https://brandsweets.com/colors/charcoal
- **Amber** #ffbf00 [pool] — Amber is paired with #173fde in 5 real palettes, including Walmart's brand system and Binance's brand system, as the accent. Seen in: Walmart (https://brandsweets.com/colors/brands/walmart-com), Binance (https://brandsweets.com/colors/brands/binance-com), NBA (https://brandsweets.com/colors/brands/nba-com), Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-com). — https://brandsweets.com/colors/amber
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #173fde: 9 real palettes, including Qualcomm's brand system and Canva's brand system, as the supporting colour. Seen in: Qualcomm (https://brandsweets.com/colors/brands/qualcomm-com), Canva (https://brandsweets.com/colors/brands/canva-com), Spotify (https://brandsweets.com/colors/brands/spotify), Gopro (https://brandsweets.com/colors/brands/gopro-com). — https://brandsweets.com/colors/cornflowerblue
- **Crimson** #dc143c [pool] — Crimson is paired with #173fde in 14 real palettes, including Behance's brand system and Coinbase's brand system, as the accent. Seen in: Behance (https://brandsweets.com/colors/brands/behance-net), Coinbase (https://brandsweets.com/colors/brands/coinbase), Dunkin' (https://brandsweets.com/colors/brands/dunkindonuts-com), Tim Hortons (https://brandsweets.com/colors/brands/timhortons-com). — https://brandsweets.com/colors/crimson
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #173fde: 10 real palettes, including Coursera's brand system and Cargo's brand system, as the supporting colour. Seen in: Coursera (https://brandsweets.com/colors/brands/coursera-org), Cargo (https://brandsweets.com/colors/brands/cargo-site), Readymag (https://brandsweets.com/colors/brands/readymag-com), Samsung (https://brandsweets.com/colors/brands/samsung-com). — https://brandsweets.com/colors/dodgerblue
- **Firebrick** #b22222 [pool] — Designers have shipped Firebrick with #173fde: 5 real palettes, including MLB's brand system and 3M's brand system, as the supporting colour. Seen in: MLB (https://brandsweets.com/colors/brands/mlb-com), 3M (https://brandsweets.com/colors/brands/3m-com), Nissan (https://brandsweets.com/colors/brands/nissanusa-com), Bose (https://brandsweets.com/colors/brands/bose-com). — https://brandsweets.com/colors/firebrick
- **Medium Sea Green** #3cb371 [pool] — Medium Sea Green is paired with #173fde in 6 real palettes, including Indigo SaaS and Spotify's brand system, as the accent. Seen in: Indigo SaaS (https://brandsweets.com/palettes/modern#indigo-saas), Spotify (https://brandsweets.com/colors/brands/spotify), Unity (https://brandsweets.com/colors/brands/unity-com), Console Light (https://brandsweets.com/palettes/technical#console-light). — https://brandsweets.com/colors/mediumseagreen
- **Olive Green** #808000 [harmony: complementary] — Olive Green sits directly opposite #173fde on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. — https://brandsweets.com/colors/olive

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

- On white (#ffffff): 7.49:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.8:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #4b6bec (4.61:1); AA: background → #c9c9c9 (4.53:1); AAA: text → #7991f1 (7.13:1); AAA: background → #fafafa (7.18:1)

## Brands using this color

- **Zillow** — primary #0443dc (Δ 0.917) — https://brandsweets.com/colors/brands/zillow-com
- **Pixar** — accent #0040e5 (Δ 1.357) — https://brandsweets.com/colors/brands/pixar-com
- **Oreo** — primary #0047d9 (Δ 1.652) — https://brandsweets.com/colors/brands/oreo-com
- **Zillow** — secondary #0444d4 (Δ 1.816) — https://brandsweets.com/colors/brands/zillow-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/173fde-9c9fc4-df7c4e-231f2d-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: "#173fde" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.