# #129b19

A color — vivid. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#129b19`
- RGB: rgb(18, 155, 25)
- HSL: hsl(123, 79%, 34%)
- OKLCH: oklch(0.6 0.194 143)
- Relative luminance: 0.2364
- Nearest named color: Herbalist’s Garden (#119900, Δ 0.903) — https://brandsweets.com/colors/herbalists-garden
- Moods: vivid
- Page: https://brandsweets.com/colors/129b19

## Tints & shades

- Tints (toward white): #15b71d, #19d723, #28e632, #48ea50, #64ed6b, #7ff085, #9ff4a3, #bbf7be, #dafbdc, #f6fef6
- Shades (toward black): #118d17, #0f8015, #0d7212, #0c6410, #0a570e, #09490c, #073b0a, #052e07, #042005, #021203

## Harmonies

- Complementary: #9b1294
- Analogous: #509b12, #129b5e
- Triadic: #19129b, #9b1912
- Split-complementary: #5e129b, #9b1250
- Tetradic: #12509b, #9b1294, #9b5e12

## Colors that go with #129b19

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

- **Crimson** #dc143c [harmony, pool: triadic] — Crimson completes a triad with #129b19 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: DuckDuckGo (https://brandsweets.com/colors/brands/duckduckgo-com), Coinbase (https://brandsweets.com/colors/brands/coinbase), Five Guys (https://brandsweets.com/colors/brands/fiveguys-com), Netflix (https://brandsweets.com/colors/brands/netflix). — https://brandsweets.com/colors/crimson
- **Royal Blue** #4169e1 [harmony, pool: triadic] — Royal Blue completes a triad with #129b19 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Console Light (https://brandsweets.com/palettes/technical#console-light), Telehealth (https://brandsweets.com/palettes/modern#telehealth), Xbox (https://brandsweets.com/colors/brands/xbox-com), Coinbase (https://brandsweets.com/colors/brands/coinbase). — https://brandsweets.com/colors/royalblue
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #129b19: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Zendesk (https://brandsweets.com/colors/brands/zendesk-com), Asana (https://brandsweets.com/colors/brands/asana-com), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com). — https://brandsweets.com/colors/charcoal
- **Denim** #1560bd [pool] — Designers have shipped Denim with #129b19: 5 real palettes, including Xbox's brand system and Intel's brand system, as the supporting colour. Seen in: Xbox (https://brandsweets.com/colors/brands/xbox-com), 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
- **Medium Orchid** #ba55d3 [harmony: complementary] — Medium Orchid sits directly opposite #129b19 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/mediumorchid
- **Medium Violet Red** #c71585 [harmony, pool: split] — Medium Violet Red is a split-complement of #129b19: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Bun (https://brandsweets.com/colors/brands/bun-sh). — https://brandsweets.com/colors/mediumvioletred
- **Blue** #0000ff [pool] — 3 real palettes, including Instacart's brand system and Kia's brand system put Blue beside #129b19, as the accent. Seen in: Instacart (https://brandsweets.com/colors/brands/instacart-com), Kia (https://brandsweets.com/colors/brands/kia-com), Spotify (https://brandsweets.com/colors/brands/spotify). — https://brandsweets.com/colors/blue
- **Midnight Blue** #191970 [pool] — 3 real palettes, including Telehealth and Fintech Trust put Midnight Blue beside #129b19, as the text colour against it. Seen in: Telehealth (https://brandsweets.com/palettes/modern#telehealth), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Paramount+ (https://brandsweets.com/colors/brands/paramountplus-com). — https://brandsweets.com/colors/midnightblue

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

- On white (#ffffff): 3.67:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #108916 (4.55:1); AA: background → #1c1c1c (4.65:1); AAA: text → #0c6410 (7.38:1)
- On black (#000000): 5.73:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #14ad1c (7.02:1)

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/129b19-a2bea6-a04edf-1f2d26-edf1e9?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: "#129b19" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.