# #397979

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

## Values

- Hex: `#397979`
- RGB: rgb(57, 121, 121)
- HSL: hsl(180, 36%, 35%)
- OKLCH: oklch(0.534 0.065 195.4)
- Relative luminance: 0.1593
- Nearest named color: Green Sleeves (#39766c, Δ 1.998) — https://brandsweets.com/colors/green-sleeves
- Moods: cool, modern
- Page: https://brandsweets.com/colors/397979

## Tints & shades

- Tints (toward white): #438e8e, #4ea6a6, #5fb4b4, #74bebe, #8dc9c9, #a1d3d3, #b6dddd, #cbe7e7, #e3f2f2, #f8fcfc
- Shades (toward black): #346f6f, #2f6565, #2a5a5a, #265050, #214545, #1a3737, #152d2d, #102323, #0b1818, #070e0e

## Harmonies

- Complementary: #793939
- Analogous: #397959, #395979
- Triadic: #793979, #797939
- Split-complementary: #793959, #795939
- Tetradic: #593979, #793939, #597939

## Colors that go with #397979

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 #397979: softer than #000 and cool enough to feel like part of the same palette. Seen in: Gusto (https://brandsweets.com/colors/brands/gusto-com), N26 (https://brandsweets.com/colors/brands/n26-com), Stanley (https://brandsweets.com/colors/brands/stanley1913-com), Campus (https://brandsweets.com/palettes/friendly#campus). — https://brandsweets.com/colors/charcoal
- **Firebrick** #b22222 [harmony, pool: complementary] — Firebrick sits directly opposite #397979 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Wendy's (https://brandsweets.com/colors/brands/wendys-com), Newsprint (https://brandsweets.com/palettes/editorial#newsprint), Fireside (https://brandsweets.com/palettes/dark#fireside), Honda (https://brandsweets.com/colors/brands/honda-com). — https://brandsweets.com/colors/firebrick
- **Amber** #ffbf00 [pool] — Amber is paired with #397979 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
- **Champagne** #f7e7ce [pool] — 5 real palettes, including Forest Floor and Darkroom put Champagne beside #397979, as that palette's text colour. Seen in: Forest Floor (https://brandsweets.com/palettes/dark#forest-floor), Darkroom (https://brandsweets.com/palettes/muted#darkroom), BrandSweets (https://brandsweets.com/colors/brands/brandsweets), Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar). — https://brandsweets.com/colors/champagne
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #397979: 5 real palettes, including Ink & Paper and Intel's brand system, as the accent. Seen in: Ink & Paper (https://brandsweets.com/palettes/minimal#ink-and-paper), Intel (https://brandsweets.com/colors/brands/intel-com), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Glacier (https://brandsweets.com/palettes/cool#glacier). — https://brandsweets.com/colors/cobalt
- **Copper** #b87333 [pool] — Designers have shipped Copper with #397979: 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), Clay & Linen (https://brandsweets.com/palettes/warm#clay-and-linen), Desert Road (https://brandsweets.com/palettes/warm#desert-road). — https://brandsweets.com/colors/copper
- **Crimson** #dc143c [pool] — Crimson is paired with #397979 in 11 real palettes, including Gemstone and Redfin's brand system, as the accent. Seen in: Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Redfin (https://brandsweets.com/colors/brands/redfin-com), Retro Pop (https://brandsweets.com/palettes/playful#retro-pop), Five Guys (https://brandsweets.com/colors/brands/fiveguys-com). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #397979: 12 real palettes, including Campus and Intel's brand system, as the lead colour. Seen in: Campus (https://brandsweets.com/palettes/friendly#campus), 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/denim

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

- On white (#ffffff): 5.02:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #2e6161 (7:1)
- On black (#000000): 4.19:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #3c8080 (4.59:1); AA: background → #f5f5f5 (4.6:1); AAA: text → #4da3a3 (7.08:1)

## 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/397979-a2bbbe-d45994-1f272d-e9f1ed?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: "#397979" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.