# #899c21

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

## Values

- Hex: `#899c21`
- RGB: rgb(137, 156, 33)
- HSL: hsl(69, 65%, 37%)
- OKLCH: oklch(0.656 0.142 118.4)
- Relative luminance: 0.2921
- Nearest named color: Densetsu Green (#889911, Δ 0.961) — https://brandsweets.com/colors/densetsu-green
- Moods: vivid
- Page: https://brandsweets.com/colors/899c21

## Tints & shades

- Tints (toward white): #a0b526, #b6ce2c, #c0d742, #c9dc5b, #d3e278, #dbe892, #e3edab, #ecf3c4, #f4f8dd, #fcfdf7
- Shades (toward black): #7e8f1e, #6f7e1b, #647218, #596515, #4e5813, #3f480f, #343b0c, #292e0a, #1a1d06, #0f1104

## Harmonies

- Complementary: #33219c
- Analogous: #9c7121, #4c9c21
- Triadic: #21899c, #9c2189
- Split-complementary: #214c9c, #71219c
- Tetradic: #219c71, #33219c, #9c214c

## Colors that go with #899c21

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

- **Medium Purple** #9370db [harmony, pool: complementary] — Medium Purple sits directly opposite #899c21 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Next.js (https://brandsweets.com/colors/brands/nextjs-org). — https://brandsweets.com/colors/mediumpurple
- **Blue** #0000ff [pool] — 5 real palettes, including Rolex's brand system and Spotify's brand system put Blue beside #899c21, as the accent. Seen in: Rolex (https://brandsweets.com/colors/brands/rolex-com), Spotify (https://brandsweets.com/colors/brands/spotify), Minecraft (https://brandsweets.com/colors/brands/minecraft-net), Lexus (https://brandsweets.com/colors/brands/lexus-com). — https://brandsweets.com/colors/blue
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #899c21: 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), Puma (https://brandsweets.com/colors/brands/puma-com), Mint Modern (https://brandsweets.com/palettes/modern#mint-modern). — https://brandsweets.com/colors/charcoal
- **Dark Olive Green** #556b2f [pool] — Dark Olive Green shows up next to #899c21 in 4 real palettes, including Undergrowth and Forest Floor, as the supporting colour. Seen in: Undergrowth (https://brandsweets.com/palettes/dark#undergrowth), Forest Floor (https://brandsweets.com/palettes/dark#forest-floor), Cider (https://brandsweets.com/palettes/warm#cider), Olive Grove (https://brandsweets.com/palettes/muted#olive-grove). — https://brandsweets.com/colors/darkolivegreen
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #899c21 in 5 real palettes, including Console Light and Telehealth, as the lead colour. Seen in: Console Light (https://brandsweets.com/palettes/technical#console-light), Telehealth (https://brandsweets.com/palettes/modern#telehealth), Guinness (https://brandsweets.com/colors/brands/guinness-com), Brilliant (https://brandsweets.com/colors/brands/brilliant-org). — https://brandsweets.com/colors/royalblue
- **Saddle Brown** #8b4513 [pool] — Designers have shipped Saddle Brown with #899c21: 4 real palettes, including Cider and Homestead, as the lead colour. Seen in: Cider (https://brandsweets.com/palettes/warm#cider), Homestead (https://brandsweets.com/palettes/warm#homestead), Darkroom (https://brandsweets.com/palettes/muted#darkroom), Bakery (https://brandsweets.com/palettes/warm#bakery). — https://brandsweets.com/colors/saddlebrown
- **Slate Gray** #708090 [pool] — 4 real palettes, including Greige and Ledger Dark put Slate Gray beside #899c21, as the lead colour. Seen in: Greige (https://brandsweets.com/palettes/neutral#greige), Ledger Dark (https://brandsweets.com/palettes/dark#ledger-dark), Atelier (https://brandsweets.com/palettes/elegant#atelier), Indigo SaaS (https://brandsweets.com/palettes/modern#indigo-saas). — https://brandsweets.com/colors/slategray
- **Taupe** #483c32 [pool] — Taupe is paired with #899c21 in 16 real palettes, including Undergrowth and Acer's brand system, as the surface under it. Seen in: Undergrowth (https://brandsweets.com/palettes/dark#undergrowth), Acer (https://brandsweets.com/colors/brands/acer-com), Cider (https://brandsweets.com/palettes/warm#cider), Olive Grove (https://brandsweets.com/palettes/muted#olive-grove). — https://brandsweets.com/colors/taupe

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

- On white (#ffffff): 3.07:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #6c7a1a (4.73:1); AA: background → #2b2b2b (4.61:1); AAA: text → #525d14 (7.16:1)
- On black (#000000): 6.84:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #8da022 (7.18:1)

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/899c21-b7bea2-4e7edf-252d1f-f1eee9?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: "#899c21" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.