# #407e91

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

## Values

- Hex: `#407e91`
- RGB: rgb(64, 126, 145)
- HSL: hsl(194, 39%, 41%)
- OKLCH: oklch(0.559 0.07 220.3)
- Relative luminance: 0.1806
- Nearest named color: Cry Me a River (#427898, Δ 2.39) — https://brandsweets.com/colors/cry-me-a-river
- Moods: cool, modern
- Page: https://brandsweets.com/colors/407e91

## Tints & shades

- Tints (toward white): #4991a7, #559eb4, #6aaabe, #7fb6c7, #95c2d0, #a6cdd8, #bcd9e1, #d1e5eb, #e3eff3, #f8fbfc
- Shades (toward black): #3a7283, #356979, #2f5c6a, #28505c, #244752, #1e3b43, #172e35, #112227, #0c191c, #060c0e

## Harmonies

- Complementary: #915340
- Analogous: #40917c, #405691
- Triadic: #91407e, #7e9140
- Split-complementary: #914056, #917c40
- Tetradic: #7c4091, #915340, #569140

## Colors that go with #407e91

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 #407e91: 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), Campus (https://brandsweets.com/palettes/friendly#campus), Auth0 (https://brandsweets.com/colors/brands/auth0-com), Gusto (https://brandsweets.com/colors/brands/gusto-com). — https://brandsweets.com/colors/charcoal
- **Amber** #ffbf00 [pool] — Amber is paired with #407e91 in 4 real palettes, including Beach Hut and Lemon Squeezy's brand system, as the supporting colour. Seen in: Beach Hut (https://brandsweets.com/palettes/light#beach-hut), Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com), Wired (https://brandsweets.com/colors/brands/wired-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 #407e91: 6 real palettes, including Fintech Trust and Glacier, as the lead colour. Seen in: Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Glacier (https://brandsweets.com/palettes/cool#glacier), Ink & Paper (https://brandsweets.com/palettes/minimal#ink-and-paper), Hershey's (https://brandsweets.com/colors/brands/hersheys-com). — https://brandsweets.com/colors/cobalt
- **Copper** #b87333 [pool] — Designers have shipped Copper with #407e91: 7 real palettes, including Riverbed and Wellness, as the accent. Seen in: Riverbed (https://brandsweets.com/palettes/muted#riverbed), Wellness (https://brandsweets.com/palettes/warm#wellness), Dusk (https://brandsweets.com/palettes/cool#dusk), Atelier (https://brandsweets.com/palettes/elegant#atelier). — https://brandsweets.com/colors/copper
- **Crimson** #dc143c [pool] — Crimson is paired with #407e91 in 13 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), Gemstone (https://brandsweets.com/palettes/vivid#gemstone). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #407e91: 4 real palettes, including Deep Water and Telegram's brand system, as the lead colour. Seen in: Deep Water (https://brandsweets.com/palettes/dark#deep-water), Telegram (https://brandsweets.com/colors/brands/telegram-org), 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 #407e91: 15 real palettes, including Campus and Discover's brand system, as the lead colour. Seen in: Campus (https://brandsweets.com/palettes/friendly#campus), Discover (https://brandsweets.com/colors/brands/discover-com), Capital One (https://brandsweets.com/colors/brands/capitalone-com), The New York Times (https://brandsweets.com/colors/brands/nytimes-com). — https://brandsweets.com/colors/denim
- **Sienna** #a0522d [harmony: complementary] — Sienna sits directly opposite #407e91 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/sienna

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

- On white (#ffffff): 4.55:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #305f6e (7.03:1)
- On black (#000000): 4.61:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #58a0b6 (7.12:1)

## 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/407e91-9cb6c4-df4e72-1f242d-e9f1ef?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: "#407e91" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.