# #5175d2

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

## Values

- Hex: `#5175d2`
- RGB: rgb(81, 117, 210)
- HSL: hsl(223, 59%, 57%)
- OKLCH: oklch(0.582 0.148 266)
- Relative luminance: 0.1913
- Nearest named color: Blue Öyster Cult (#5577ee, Δ 4.29) — https://brandsweets.com/colors/blue-oyster-cult
- Moods: cool, modern
- Page: https://brandsweets.com/colors/5175d2

## Tints & shades

- Tints (toward white): #6182d6, #718fda, #819cdf, #92a9e3, #a6b9e8, #b6c5ec, #c6d2f0, #d6dff5, #e7ecf9, #f7f9fd
- Shades (toward black): #3c65cd, #3057bb, #2b4ea6, #264492, #203b7e, #1a2f65, #152651, #101c3d, #091124, #040810

## Harmonies

- Complementary: #d2ad51
- Analogous: #51b6d2, #6d51d2
- Triadic: #d25175, #75d251
- Split-complementary: #d26d51, #b6d251
- Tetradic: #d251b6, #d2ad51, #51d26d

## Colors that go with #5175d2

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 #5175d2: softer than #000 and cool enough to feel like part of the same palette. Seen in: Disney (https://brandsweets.com/colors/brands/disney-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
- **Sea Green** #2e8b57 [harmony, pool: triadic] — Sea Green completes a triad with #5175d2 — 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), Intel (https://brandsweets.com/colors/brands/intel-com), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com), Netflix (https://brandsweets.com/colors/brands/netflix). — https://brandsweets.com/colors/seagreen
- **Amber** #ffbf00 [pool] — Amber is paired with #5175d2 in 12 real palettes, including Walmart's brand system and Wikipedia's brand system, as the accent. Seen in: Walmart (https://brandsweets.com/colors/brands/walmart-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org), Google (https://brandsweets.com/colors/brands/google-com), Wired (https://brandsweets.com/colors/brands/wired-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 14 real palettes, including Qualcomm's brand system and Readymag's brand system put Blue beside #5175d2, as the accent. Seen in: Qualcomm (https://brandsweets.com/colors/brands/qualcomm-com), Readymag (https://brandsweets.com/colors/brands/readymag-com), BBC (https://brandsweets.com/colors/brands/bbc-com), Pixar (https://brandsweets.com/colors/brands/pixar-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #5175d2: 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), Carrefour (https://brandsweets.com/colors/brands/carrefour-com), Hershey's (https://brandsweets.com/colors/brands/hersheys-com). — https://brandsweets.com/colors/cobalt
- **Crimson** #dc143c [pool] — Crimson is paired with #5175d2 in 16 real palettes, including Marvel's brand system and Pizza Hut's brand system, as the accent. Seen in: Marvel (https://brandsweets.com/colors/brands/marvel-com), Pizza Hut (https://brandsweets.com/colors/brands/pizzahut-com), NASCAR (https://brandsweets.com/colors/brands/nascar-com), Foot Locker (https://brandsweets.com/colors/brands/footlocker-com). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #5175d2: 9 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), Patreon (https://brandsweets.com/colors/brands/patreon-com), Telegram (https://brandsweets.com/colors/brands/telegram-org). — https://brandsweets.com/colors/deepskyblue
- **Emerald Green** #50c878 [pool] — Emerald Green is paired with #5175d2 in 4 real palettes, including Playground and Docker's brand system, as the accent. Seen in: Playground (https://brandsweets.com/palettes/bold#playground), Docker (https://brandsweets.com/colors/brands/docker-com), Obsidian (https://brandsweets.com/colors/brands/obsidian-md), Ledger Dark (https://brandsweets.com/palettes/dark#ledger-dark). — https://brandsweets.com/colors/emerald-green

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

- On white (#ffffff): 4.35:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #4d72d1 (4.52:1); AA: background → #0a0a0a (4.55:1); AAA: text → #2d52ae (7.17:1)
- On black (#000000): 4.83:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #7995dc (7.15:1)

## Brands using this color

- **Brilliant** — accent #5d74cc (Δ 1.595) — https://brandsweets.com/colors/brands/brilliant-org

## Fonts for this mood

- 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/5175d2-9ca3c4-df704e-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: "#5175d2" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.