# #138b7d

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

## Values

- Hex: `#138b7d`
- RGB: rgb(19, 139, 125)
- HSL: hsl(173, 76%, 31%)
- OKLCH: oklch(0.573 0.099 182.3)
- Relative luminance: 0.2008
- Nearest named color: Go Go Green (#008a7d, Δ 0.534) — https://brandsweets.com/colors/go-go-green
- Moods: vivid
- Page: https://brandsweets.com/colors/138b7d

## Tints & shades

- Tints (toward white): #17ab99, #1bc5b2, #23e1cb, #43e5d2, #62eada, #7dede0, #9cf2e8, #bcf6ef, #d7f9f5, #f6fefd
- Shades (toward black): #117e71, #107569, #0e675d, #0c5a51, #0b5149, #09433d, #073630, #062824, #041f1c, #021210

## Harmonies

- Complementary: #8b1321
- Analogous: #138b41, #135d8b
- Triadic: #7d138b, #8b7d13
- Split-complementary: #8b135d, #8b4113
- Tetradic: #41138b, #8b1321, #5d8b13

## Colors that go with #138b7d

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 #138b7d: softer than #000 and cool enough to feel like part of the same palette. Seen in: N26 (https://brandsweets.com/colors/brands/n26-com), Tide Pool (https://brandsweets.com/palettes/cool#tide-pool), Coastal (https://brandsweets.com/palettes/cool#coastal), Asana (https://brandsweets.com/colors/brands/asana-com). — https://brandsweets.com/colors/charcoal
- **Copper** #b87333 [harmony, pool: triadic] — Copper completes a triad with #138b7d — 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), Riverbed (https://brandsweets.com/palettes/muted#riverbed), Clean Beauty (https://brandsweets.com/palettes/minimal#clean-beauty), Clay & Linen (https://brandsweets.com/palettes/warm#clay-and-linen). — https://brandsweets.com/colors/copper
- **Crimson** #dc143c [harmony, pool: split] — Crimson is a split-complement of #138b7d: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Redfin (https://brandsweets.com/colors/brands/redfin-com), Diner (https://brandsweets.com/palettes/vivid#diner), Five Guys (https://brandsweets.com/colors/brands/fiveguys-com), Netflix (https://brandsweets.com/colors/brands/netflix). — https://brandsweets.com/colors/crimson
- **Medium Violet Red** #c71585 [harmony, pool: complementary] — Medium Violet Red sits directly opposite #138b7d on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Bun (https://brandsweets.com/colors/brands/bun-sh). — https://brandsweets.com/colors/mediumvioletred
- **Denim** #1560bd [pool] — Designers have shipped Denim with #138b7d: 8 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
- **Goldenrod** #daa520 [pool] — Goldenrod shows up next to #138b7d in 4 real palettes, including Mid-Century and Sapphire & Gold, as the accent. Seen in: Mid-Century (https://brandsweets.com/palettes/warm#mid-century), Sapphire & Gold (https://brandsweets.com/palettes/luxury#sapphire-and-gold), Noir Beauty (https://brandsweets.com/palettes/dark#noir-beauty), Ledger Dark (https://brandsweets.com/palettes/dark#ledger-dark). — https://brandsweets.com/colors/goldenrod
- **Midnight Blue** #191970 [pool] — 7 real palettes, including Tide Pool and Paramount+'s brand system put Midnight Blue beside #138b7d, as that palette's text colour. Seen in: Tide Pool (https://brandsweets.com/palettes/cool#tide-pool), Paramount+ (https://brandsweets.com/colors/brands/paramountplus-com), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Ford (https://brandsweets.com/colors/brands/ford-com). — https://brandsweets.com/colors/midnightblue
- **Orange** #ffa500 [pool] — 4 real palettes, including Campus and Farmers Market put Orange beside #138b7d, as the accent. Seen in: Campus (https://brandsweets.com/palettes/friendly#campus), Farmers Market (https://brandsweets.com/palettes/warm#farmers-market), Graphite (https://brandsweets.com/palettes/technical#graphite), Olympics (https://brandsweets.com/colors/brands/olympics-com). — https://brandsweets.com/colors/orange

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

- On white (#ffffff): 4.19:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #128275 (4.69:1); AA: background → #0f0f0f (4.58:1); AAA: text → #0d6359 (7.13:1)
- On black (#000000): 5.02:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #17ab99 (7.32:1)

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/138b7d-a2bebe-d459a3-1f292d-e9f1ec?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: "#138b7d" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.