# #12a178

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

## Values

- Hex: `#12a178`
- RGB: rgb(18, 161, 120)
- HSL: hsl(163, 80%, 35%)
- OKLCH: oklch(0.63 0.127 166.4)
- Relative luminance: 0.2697
- Nearest named color: Bejewelled (#25a26f, Δ 1.426) — https://brandsweets.com/colors/bejewelled
- Moods: vivid
- Page: https://brandsweets.com/colors/12a178

## Tints & shades

- Tints (toward white): #15bc8d, #18dca5, #2ce8b2, #47ebbc, #68eec8, #83f1d2, #9ff4dc, #baf7e6, #dafbf2, #f6fefc
- Shades (toward black): #10936e, #0f8564, #0d7759, #0c6a4f, #0a5c45, #084937, #073c2d, #052e22, #042018, #02120e

## Harmonies

- Complementary: #a1123a
- Analogous: #12a131, #1282a1
- Triadic: #7812a1, #a17812
- Split-complementary: #a11282, #a13112
- Tetradic: #3112a1, #a1123a, #82a112

## Colors that go with #12a178

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 #12a178: softer than #000 and cool enough to feel like part of the same palette. Seen in: Coastal (https://brandsweets.com/palettes/cool#coastal), Tide Pool (https://brandsweets.com/palettes/cool#tide-pool), N26 (https://brandsweets.com/colors/brands/n26-com), Mint Modern (https://brandsweets.com/palettes/modern#mint-modern). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: split] — Crimson is a split-complement of #12a178: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Diner (https://brandsweets.com/palettes/vivid#diner), DuckDuckGo (https://brandsweets.com/colors/brands/duckduckgo-com), Coinbase (https://brandsweets.com/colors/brands/coinbase), Five Guys (https://brandsweets.com/colors/brands/fiveguys-com). — https://brandsweets.com/colors/crimson
- **Blue** #0000ff [pool] — 4 real palettes, including Unity's brand system and Kia's brand system put Blue beside #12a178, as the supporting colour. Seen in: Unity (https://brandsweets.com/colors/brands/unity-com), Kia (https://brandsweets.com/colors/brands/kia-com), Spotify (https://brandsweets.com/colors/brands/spotify), Instacart (https://brandsweets.com/colors/brands/instacart-com). — https://brandsweets.com/colors/blue
- **Chocolate** #d2691e [harmony, pool: triadic] — Chocolate completes a triad with #12a178 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Wellness (https://brandsweets.com/palettes/warm#wellness), Farmers Market (https://brandsweets.com/palettes/warm#farmers-market), Homestead (https://brandsweets.com/palettes/warm#homestead). — https://brandsweets.com/colors/chocolate
- **Denim** #1560bd [pool] — Designers have shipped Denim with #12a178: 5 real palettes, including Peacock and Intel's brand system, as the supporting colour. Seen in: Peacock (https://brandsweets.com/palettes/vivid#peacock), 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
- **Midnight Blue** #191970 [pool] — 6 real palettes, including Fintech Trust and Tide Pool put Midnight Blue beside #12a178, as the text colour against it. Seen in: Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Tide Pool (https://brandsweets.com/palettes/cool#tide-pool), Telehealth (https://brandsweets.com/palettes/modern#telehealth), Ford (https://brandsweets.com/colors/brands/ford-com). — https://brandsweets.com/colors/midnightblue
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #12a178 in 6 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), Khan Academy (https://brandsweets.com/colors/brands/khanacademy-org), Coinbase (https://brandsweets.com/colors/brands/coinbase). — https://brandsweets.com/colors/royalblue
- **Taupe** #483c32 [pool] — Taupe is paired with #12a178 in 12 real palettes, including Wellness and Rain Garden, as that palette's text colour. Seen in: Wellness (https://brandsweets.com/palettes/warm#wellness), Rain Garden (https://brandsweets.com/palettes/cool#rain-garden), Subaru (https://brandsweets.com/colors/brands/subaru-com), Clean Beauty (https://brandsweets.com/palettes/minimal#clean-beauty). — https://brandsweets.com/colors/taupe

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

- On white (#ffffff): 3.28:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #0f8564 (4.61:1); AA: background → #262626 (4.61:1); AAA: text → #0b654c (7.05:1)
- On black (#000000): 6.39:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #13aa7f (7.08:1)

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/12a178-a2beb9-d459b7-1f2b2d-e9f1eb?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: "#12a178" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.