# #340599

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

## Values

- Hex: `#340599`
- RGB: rgb(52, 5, 153)
- HSL: hsl(259, 94%, 31%)
- OKLCH: oklch(0.341 0.199 282)
- Relative luminance: 0.0314
- Nearest named color: Dramatic Blue (#240093, Δ 3.345) — https://brandsweets.com/colors/dramatic-blue
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/340599

## Tints & shades

- Tints (toward white): #4006bc, #4a07da, #570df8, #6f2ff9, #8752fa, #9c70fb, #b492fc, #ccb5fd, #e0d2fe, #f8f5ff
- Shades (toward black): #2f048b, #2b0481, #260472, #210363, #1e0359, #19024a, #14023b, #0f012d, #0c0123, #070114

## Harmonies

- Complementary: #6a9905
- Analogous: #052099, #7e0599
- Triadic: #993405, #059934
- Split-complementary: #997e05, #209905
- Tetradic: #990520, #6a9905, #05997e

## Colors that go with #340599

Named partners (harmony on the OKLCH wheel, co-occurrence in curated palettes and brand systems, and the neutrals that carry it), best first:

- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #340599: 5 real palettes, including Tide's brand system and Purina Pro Plan's brand system, as the lead colour. Seen in: Tide (https://brandsweets.com/colors/brands/tide-com), Purina Pro Plan (https://brandsweets.com/colors/brands/chewy-com), Zillow (https://brandsweets.com/colors/brands/zillow-com), Unilever (https://brandsweets.com/colors/brands/unilever-com). — https://brandsweets.com/colors/cobalt
- **Crimson** #dc143c [pool] — Crimson is paired with #340599 in 4 real palettes, including Pepsi's brand system and Casper Sleep's brand system, as the supporting colour. Seen in: Pepsi (https://brandsweets.com/colors/brands/pepsi-com), Casper Sleep (https://brandsweets.com/colors/brands/casper-com), Nintendo (https://brandsweets.com/colors/brands/nintendo-com), Marvel (https://brandsweets.com/colors/brands/marvel-com). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [harmony, pool: analogous] — Denim is #340599's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Bank of America (https://brandsweets.com/colors/brands/bankofamerica-com), Warbyparker (https://brandsweets.com/colors/brands/warbyparker-com), Unilever (https://brandsweets.com/colors/brands/unilever-com). — https://brandsweets.com/colors/denim
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #340599 in 4 real palettes, including Discord's brand system and Nivea's brand system, as the lead colour. Seen in: Discord (https://brandsweets.com/colors/brands/discord), Nivea (https://brandsweets.com/colors/brands/nivea-com), Nokia (https://brandsweets.com/colors/brands/nokia-com), NHL (https://brandsweets.com/colors/brands/nhl-com). — https://brandsweets.com/colors/royalblue
- **Steel Blue** #4682b4 [pool] — Designers have shipped Steel Blue with #340599: 4 real palettes, including FedEx's brand system and Hershey's's brand system, as the accent. Seen in: FedEx (https://brandsweets.com/colors/brands/fedex-com), Hershey's (https://brandsweets.com/colors/brands/hersheys-com), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Glacier (https://brandsweets.com/palettes/cool#glacier). — https://brandsweets.com/colors/steelblue
- **Olive Green** #808000 [harmony: complementary] — Olive Green sits directly opposite #340599 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/olive
- **Blue** #0000ff [pool] — 3 real palettes, including Procter & Gamble's brand system and Zillow's brand system put Blue beside #340599, as the supporting colour. Seen in: Procter & Gamble (https://brandsweets.com/colors/brands/pg-com), Zillow (https://brandsweets.com/colors/brands/zillow-com), Pfizer (https://brandsweets.com/colors/brands/pfizer-com). — https://brandsweets.com/colors/blue
- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #340599: softer than #000 and cool enough to feel like part of the same palette. Seen in: dbt Labs (https://brandsweets.com/colors/brands/getdbt-com), Boeing (https://brandsweets.com/colors/brands/boeing-com). — https://brandsweets.com/colors/charcoal

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

- On white (#ffffff): 12.9:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.63:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #8752fa (4.62:1); AA: background → #999999 (4.53:1); AAA: text → #a983fb (7.33:1); AAA: background → #bfbfbf (7.02:1)

## Fonts for this mood

- technical: https://brandsweets.com/fonts/mood/technical
- 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/340599-ad9cc4-dfc74e-2a1f2d-e9ebf1?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: "#340599" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.