# #428aae

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

## Values

- Hex: `#428aae`
- RGB: rgb(66, 138, 174)
- HSL: hsl(200, 45%, 47%)
- OKLCH: oklch(0.602 0.09 232.8)
- Relative luminance: 0.2239
- Nearest named color: steelblue (#4682b4, Δ 2.731) — https://brandsweets.com/colors/steelblue
- Moods: cool, modern
- Page: https://brandsweets.com/colors/428aae

## Tints & shades

- Tints (toward white): #4e97bc, #60a2c3, #72adca, #85b7d1, #9bc4d9, #aecfe0, #c0dae7, #d3e5ee, #e5f0f5, #f8fbfc
- Shades (toward black): #3c7e9f, #356f8d, #30647e, #2a586f, #244c60, #1d3e4e, #18323f, #122630, #0b171e, #060c0f

## Harmonies

- Complementary: #ae6642
- Analogous: #42ae9c, #4254ae
- Triadic: #ae428a, #8aae42
- Split-complementary: #ae4254, #ae9c42
- Tetradic: #9c42ae, #ae6642, #54ae42

## Colors that go with #428aae

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 #428aae: softer than #000 and cool enough to feel like part of the same palette. Seen in: Beach Hut (https://brandsweets.com/palettes/light#beach-hut), Auth0 (https://brandsweets.com/colors/brands/auth0-com), Dusty Blue (https://brandsweets.com/palettes/cool#dusty-blue), Bloomberg (https://brandsweets.com/colors/brands/bloomberg-com). — https://brandsweets.com/colors/charcoal
- **Copper** #b87333 [harmony, pool: complementary] — Copper sits directly opposite #428aae 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), Riverbed (https://brandsweets.com/palettes/muted#riverbed), Atelier (https://brandsweets.com/palettes/elegant#atelier). — https://brandsweets.com/colors/copper
- **Amber** #ffbf00 [pool] — Amber is paired with #428aae in 6 real palettes, including Beach Hut and Wired's brand system, as the supporting colour. Seen in: Beach Hut (https://brandsweets.com/palettes/light#beach-hut), Wired (https://brandsweets.com/colors/brands/wired-com), Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com). — https://brandsweets.com/colors/amber
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #428aae: 6 real palettes, including Hershey's's brand system and Glacier, as the supporting colour. Seen in: Hershey's (https://brandsweets.com/colors/brands/hersheys-com), Glacier (https://brandsweets.com/palettes/cool#glacier), General Mills (https://brandsweets.com/colors/brands/generalmills-com), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust). — https://brandsweets.com/colors/cobalt
- **Crimson** #dc143c [pool] — Crimson is paired with #428aae in 10 real palettes, including Retro Pop and Redfin's brand system, as the lead colour. Seen in: Retro Pop (https://brandsweets.com/palettes/playful#retro-pop), Redfin (https://brandsweets.com/colors/brands/redfin-com), Wendy's (https://brandsweets.com/colors/brands/wendys-com), NASCAR (https://brandsweets.com/colors/brands/nascar-com). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #428aae: 6 real palettes, including Telegram's brand system and Deep Water, as the lead colour. Seen in: Telegram (https://brandsweets.com/colors/brands/telegram-org), Deep Water (https://brandsweets.com/palettes/dark#deep-water), Astro (https://brandsweets.com/colors/brands/astro-build), Venmo (https://brandsweets.com/colors/brands/venmo-com). — https://brandsweets.com/colors/deepskyblue
- **Denim** #1560bd [pool] — Designers have shipped Denim with #428aae: 15 real palettes, including Discover's brand system and Gopro's brand system, as the supporting colour. Seen in: Discover (https://brandsweets.com/colors/brands/discover-com), Gopro (https://brandsweets.com/colors/brands/gopro-com), American Express (https://brandsweets.com/colors/brands/americanexpress-com), Capital One (https://brandsweets.com/colors/brands/capitalone-com). — https://brandsweets.com/colors/denim
- **Firebrick** #b22222 [pool] — Designers have shipped Firebrick with #428aae: 4 real palettes, including Honda's brand system and Wendy's's brand system, as the supporting colour. Seen in: Honda (https://brandsweets.com/colors/brands/honda-com), Wendy's (https://brandsweets.com/colors/brands/wendys-com), AT&T (https://brandsweets.com/colors/brands/att-com), Newsprint (https://brandsweets.com/palettes/editorial#newsprint). — https://brandsweets.com/colors/firebrick

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

- On white (#ffffff): 3.83:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #3b7b9b (4.67:1); AA: background → #1a1a1a (4.54:1); AAA: text → #2d5e76 (7.06:1)
- On black (#000000): 5.48:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #599dc0 (7.01:1)

## 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/428aae-9cb2c4-df4e64-1f232d-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: "#428aae" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.