# #6580d7

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

## Values

- Hex: `#6580d7`
- RGB: rgb(101, 128, 215)
- HSL: hsl(226, 59%, 62%)
- OKLCH: oklch(0.619 0.135 269.2)
- Relative luminance: 0.2311
- Nearest named color: Blue Jay (#5588dd, Δ 2.514) — https://brandsweets.com/colors/blue-jay
- Moods: cool, modern
- Page: https://brandsweets.com/colors/6580d7

## Tints & shades

- Tints (toward white): #758ddb, #8197df, #92a4e3, #9eafe6, #aebcea, #bec9ee, #cad3f1, #dbe1f6, #e7ebf9, #f7f8fd
- Shades (toward black): #4d6bd1, #3457cb, #2f4fb6, #29449e, #233a86, #1c2f6d, #162555, #111c41, #0a1129, #040710

## Harmonies

- Complementary: #d7bd65
- Analogous: #65b9d7, #8365d7
- Triadic: #d76580, #80d765
- Split-complementary: #d78365, #b9d765
- Tetradic: #d765b9, #d7bd65, #65d783

## Colors that go with #6580d7

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 #6580d7: softer than #000 and cool enough to feel like part of the same palette. Seen in: Plaid (https://brandsweets.com/colors/brands/plaid-com), Disney (https://brandsweets.com/colors/brands/disney-com), Dusty Blue (https://brandsweets.com/palettes/cool#dusty-blue), Bloomberg (https://brandsweets.com/colors/brands/bloomberg-com). — https://brandsweets.com/colors/charcoal
- **Sea Green** #2e8b57 [harmony, pool: triadic] — Sea Green completes a triad with #6580d7 — 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), Next.js (https://brandsweets.com/colors/brands/nextjs-org), Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com). — https://brandsweets.com/colors/seagreen
- **Copper** #b87333 [harmony, pool: complementary] — Copper sits directly opposite #6580d7 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Notion (https://brandsweets.com/colors/brands/notion), Dusk (https://brandsweets.com/palettes/cool#dusk). — https://brandsweets.com/colors/copper
- **Amber** #ffbf00 [pool] — Amber is paired with #6580d7 in 13 real palettes, including Google's brand system and Blueprint, as the accent. Seen in: Google (https://brandsweets.com/colors/brands/google-com), Blueprint (https://brandsweets.com/palettes/technical#blueprint), Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social), Heatwave (https://brandsweets.com/palettes/warm#heatwave). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 10 real palettes, including Qualcomm's brand system and Readymag's brand system put Blue beside #6580d7, as the accent. Seen in: Qualcomm (https://brandsweets.com/colors/brands/qualcomm-com), Readymag (https://brandsweets.com/colors/brands/readymag-com), Unity (https://brandsweets.com/colors/brands/unity-com), Cargo (https://brandsweets.com/colors/brands/cargo-site). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #6580d7: 10 real palettes, including Hershey's's brand system and Carrefour's brand system, as the supporting colour. Seen in: Hershey's (https://brandsweets.com/colors/brands/hersheys-com), Carrefour (https://brandsweets.com/colors/brands/carrefour-com), General Mills (https://brandsweets.com/colors/brands/generalmills-com), Intel (https://brandsweets.com/colors/brands/intel-com). — https://brandsweets.com/colors/cobalt
- **Crimson** #dc143c [pool] — Crimson is paired with #6580d7 in 11 real palettes, including Marvel's brand system and NASCAR's brand system, as the accent. Seen in: Marvel (https://brandsweets.com/colors/brands/marvel-com), NASCAR (https://brandsweets.com/colors/brands/nascar-com), Pizza Hut (https://brandsweets.com/colors/brands/pizzahut-com), State Farm (https://brandsweets.com/colors/brands/statefarm-com). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #6580d7: 10 real palettes, including Telegram's brand system and Patreon's brand system, as the lead colour. Seen in: Telegram (https://brandsweets.com/colors/brands/telegram-org), Patreon (https://brandsweets.com/colors/brands/patreon-com), Astro (https://brandsweets.com/colors/brands/astro-build), Blueprint (https://brandsweets.com/palettes/technical#blueprint). — https://brandsweets.com/colors/deepskyblue

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

- On white (#ffffff): 3.74:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #516fd2 (4.61:1); AA: background → #1c1c1c (4.56:1); AAA: text → #3050bb (7.02:1)
- On black (#000000): 5.62:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #7d94de (7.16:1)

## Brands using this color

- **Qualcomm** — secondary #5e83e2 (Δ 1.796) — https://brandsweets.com/colors/brands/qualcomm-com

## 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/6580d7-9ca1c4-df774e-221f2d-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: "#6580d7" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.