# #539cd0

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

## Values

- Hex: `#539cd0`
- RGB: rgb(83, 156, 208)
- HSL: hsl(205, 57%, 57%)
- OKLCH: oklch(0.667 0.107 241.8)
- Relative luminance: 0.3017
- Nearest named color: Canadian Tuxedo (#579aca, Δ 0.937) — https://brandsweets.com/colors/canadian-tuxedo
- Moods: cool, modern
- Page: https://brandsweets.com/colors/539cd0

## Tints & shades

- Tints (toward white): #63a5d4, #73aed9, #83b7dd, #93c1e1, #a7cce7, #b7d5eb, #c7dff0, #d7e8f4, #e7f1f8, #f7fafd
- Shades (toward black): #3f90ca, #3280b8, #2d72a4, #276590, #22577c, #1b4664, #163850, #102a3c, #0a1924, #040b10

## Harmonies

- Complementary: #d08753
- Analogous: #53d0c5, #535dd0
- Triadic: #d0539c, #9cd053
- Split-complementary: #d0535d, #d0c553
- Tetradic: #c553d0, #d08753, #5dd053

## Colors that go with #539cd0

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 #539cd0: softer than #000 and cool enough to feel like part of the same palette. Seen in: Lamborghini (https://brandsweets.com/colors/brands/lamborghini-com), Lido (https://brandsweets.com/palettes/vivid#lido), Dusty Blue (https://brandsweets.com/palettes/cool#dusty-blue), Blizzard (https://brandsweets.com/colors/brands/blizzard-com). — https://brandsweets.com/colors/charcoal
- **Peru** #cd853f [harmony, pool: complementary] — Peru sits directly opposite #539cd0 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Estate (https://brandsweets.com/palettes/luxury#estate), Paper & Pine (https://brandsweets.com/palettes/minimal#paper-and-pine). — https://brandsweets.com/colors/peru
- **Amber** #ffbf00 [pool] — Amber is paired with #539cd0 in 9 real palettes, including NBA's brand system and Salesforce's brand system, as the lead colour. Seen in: NBA (https://brandsweets.com/colors/brands/nba-com), Salesforce (https://brandsweets.com/colors/brands/salesforce-com), Beach Hut (https://brandsweets.com/palettes/light#beach-hut), Heatwave (https://brandsweets.com/palettes/warm#heatwave). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 6 real palettes, including Qualcomm's brand system and Unity's brand system put Blue beside #539cd0, as the accent. Seen in: Qualcomm (https://brandsweets.com/colors/brands/qualcomm-com), Unity (https://brandsweets.com/colors/brands/unity-com), Readymag (https://brandsweets.com/colors/brands/readymag-com), Warp (https://brandsweets.com/colors/brands/warp-dev). — https://brandsweets.com/colors/blue
- **Crimson** #dc143c [pool] — Crimson is paired with #539cd0 in 5 real palettes, including JBL's brand system and Riot Games's brand system, as the supporting colour. Seen in: JBL (https://brandsweets.com/colors/brands/jbl-com), Riot Games (https://brandsweets.com/colors/brands/riotgames-com), Diner (https://brandsweets.com/palettes/vivid#diner), Retro Pop (https://brandsweets.com/palettes/playful#retro-pop). — https://brandsweets.com/colors/crimson
- **Dark Orange** #ff8c00 [pool] — Dark Orange shows up next to #539cd0 in 4 real palettes, including Elastic's brand system and Learning App, as the lead colour. Seen in: Elastic (https://brandsweets.com/colors/brands/elastic-co), Learning App (https://brandsweets.com/palettes/playful#learning-app), Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com), Playground (https://brandsweets.com/palettes/bold#playground). — https://brandsweets.com/colors/darkorange
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #539cd0: 5 real palettes, including Telegram's brand system and Snowflake AI Data Cloud's brand system, as the lead colour. Seen in: Telegram (https://brandsweets.com/colors/brands/telegram-org), Snowflake AI Data Cloud (https://brandsweets.com/colors/brands/snowflake-com), Remix (https://brandsweets.com/colors/brands/remix-run), Figma (https://brandsweets.com/colors/brands/figma). — https://brandsweets.com/colors/deepskyblue
- **Denim** #1560bd [pool] — Designers have shipped Denim with #539cd0: 9 real palettes, including Gopro's brand system and Coca-Cola's brand system, as the lead colour. Seen in: Gopro (https://brandsweets.com/colors/brands/gopro-com), Coca-Cola (https://brandsweets.com/colors/brands/coca-cola-com), Dusk (https://brandsweets.com/palettes/cool#dusk), Apple (https://brandsweets.com/colors/brands/apple-com). — https://brandsweets.com/colors/denim

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

- On white (#ffffff): 2.99:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #307bb0 (4.58:1); AA: background → #2e2e2e (4.55:1); AAA: text → #245c84 (7.15:1); AAA: background → #000000 (7.03:1)
- On black (#000000): 7.03:1 — AA pass, AA-large pass, AAA pass

## 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/539cd0-9cafc4-df4e58-1f212d-e9f1f0?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: "#539cd0" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.