# #03591b

A color — vivid, dark, luxury, bold. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#03591b`
- RGB: rgb(3, 89, 27)
- HSL: hsl(137, 93%, 18%)
- OKLCH: oklch(0.405 0.12 146.4)
- Relative luminance: 0.0724
- Nearest named color: Deep Green (#02590f, Δ 1.012) — https://brandsweets.com/colors/deep-green
- Moods: vivid, dark, luxury, bold
- Page: https://brandsweets.com/colors/03591b

## Tints & shades

- Tints (toward white): #058028, #06a734, #07cf40, #09f64c, #30f869, #58f985, #7ffaa2, #a6fcbf, #cefddb, #f5fff8
- Shades (toward black): #03541a, #034a17, #024515, #023b12, #023611, #02310f, #01270c, #01220b, #011908, #011406

## Harmonies

- Complementary: #590340
- Analogous: #165903, #035946
- Triadic: #1b0359, #591b03
- Split-complementary: #460359, #590316
- Tetradic: #031659, #590340, #594603

## Colors that go with #03591b

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

- **Blue** #0000ff [pool] — 4 real palettes, including Rolex's brand system and Warp's brand system put Blue beside #03591b, as the accent. Seen in: Rolex (https://brandsweets.com/colors/brands/rolex-com), Warp (https://brandsweets.com/colors/brands/warp-dev), Jeep (https://brandsweets.com/colors/brands/jeep-com), Instacart (https://brandsweets.com/colors/brands/instacart-com). — https://brandsweets.com/colors/blue
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #03591b: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Canopy (https://brandsweets.com/palettes/cool#canopy), Pampers (https://brandsweets.com/colors/brands/pampers-com), Stanley (https://brandsweets.com/colors/brands/stanley1913-com). — https://brandsweets.com/colors/charcoal
- **Emerald Green** #50c878 [pool] — Emerald Green is paired with #03591b in 4 real palettes, including CircleCI's brand system and Neon's brand system, as the supporting colour. Seen in: CircleCI (https://brandsweets.com/colors/brands/circleci-com), Neon (https://brandsweets.com/colors/brands/neon-tech), Chime (https://brandsweets.com/colors/brands/chime-com), WhatsApp (https://brandsweets.com/colors/brands/whatsapp-com). — https://brandsweets.com/colors/emerald-green
- **Taupe** #483c32 [pool] — Taupe is paired with #03591b in 8 real palettes, including Pine & Birch and Squarespace's brand system, as that palette's text colour. Seen in: Pine & Birch (https://brandsweets.com/palettes/clean#pine-and-birch), Squarespace (https://brandsweets.com/colors/brands/squarespace-com), Bookshop (https://brandsweets.com/palettes/editorial#bookshop), 7-Eleven (https://brandsweets.com/colors/brands/7-eleven-com). — https://brandsweets.com/colors/taupe
- **Dark Orchid** #9932cc [harmony: complementary] — Dark Orchid sits directly opposite #03591b 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/darkorchid
- **Orange Red** #ff4500 [pool] — Orange Red is paired with #03591b in 3 real palettes, including Neon's brand system and Clerk's brand system, as the accent. Seen in: Neon (https://brandsweets.com/colors/brands/neon-tech), Clerk (https://brandsweets.com/colors/brands/clerk-com), HubSpot (https://brandsweets.com/colors/brands/hubspot-com). — https://brandsweets.com/colors/orangered
- **Saddle Brown** #8b4513 [pool] — Designers have shipped Saddle Brown with #03591b: 3 real palettes, including Bookshop and Darkroom, as the lead colour. Seen in: Bookshop (https://brandsweets.com/palettes/editorial#bookshop), Darkroom (https://brandsweets.com/palettes/muted#darkroom), Cider (https://brandsweets.com/palettes/warm#cider). — https://brandsweets.com/colors/saddlebrown
- **Royal Blue** #4169e1 [harmony, pool: triadic] — Royal Blue completes a triad with #03591b — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Xbox (https://brandsweets.com/colors/brands/xbox-com). — https://brandsweets.com/colors/royalblue

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

- On white (#ffffff): 8.58:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.45:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #058a2b (4.68:1); AA: background → #bdbdbd (4.56:1); AAA: text → #06b137 (7.35:1); AAA: background → #ebebeb (7.19:1)

## Brands using this color

- **CircleCI** — primary #005700 (Δ 1.888) — https://brandsweets.com/colors/brands/circleci-com
- **CircleCI** — accent #005700 (Δ 1.888) — https://brandsweets.com/colors/brands/circleci-com
- **MAC Cosmetics** — accent #005600 (Δ 1.979) — https://brandsweets.com/colors/brands/maccosmetics-com

## Fonts for this mood

- luxury: https://brandsweets.com/fonts/mood/luxury
- bold: https://brandsweets.com/fonts/mood/bold

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/03591b-a2bead-bb59d4-1f2d29-ebf1e9?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: "#03591b" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.