# #89d1cf

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

## Values

- Hex: `#89d1cf`
- RGB: rgb(137, 209, 207)
- HSL: hsl(178, 44%, 68%)
- OKLCH: oklch(0.813 0.072 193.6)
- Relative luminance: 0.5542
- Nearest named color: Hidden Sea Glass (#6fd1c9, Δ 2.667) — https://brandsweets.com/colors/hidden-sea-glass
- Moods: neutral
- Page: https://brandsweets.com/colors/89d1cf

## Tints & shades

- Tints (toward white): #95d6d3, #a0dad8, #abdedc, #b6e2e1, #c1e7e5, #ccebea, #d7efee, #e2f4f3, #edf8f7, #f8fcfc
- Shades (toward black): #73c9c6, #5abfbb, #46b4b0, #3c9a97, #338481, #2b6e6c, #215453, #183e3d, #0e2524, #060f0e

## Harmonies

- Complementary: #d1898c
- Analogous: #89d1ab, #89b0d1
- Triadic: #cf89d1, #d1cf89
- Split-complementary: #d189b0, #d1ab89
- Tetradic: #ab89d1, #d1898c, #b0d189

## Colors that go with #89d1cf

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 #89d1cf: softer than #000 and cool enough to feel like part of the same palette. Seen in: Coastal (https://brandsweets.com/palettes/cool#coastal), Canopy (https://brandsweets.com/palettes/cool#canopy), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember), Harbour (https://brandsweets.com/palettes/cool#harbour). — https://brandsweets.com/colors/charcoal
- **Dark Salmon** #e9967a [harmony, pool: complementary] — Dark Salmon sits directly opposite #89d1cf on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Polaroid (https://brandsweets.com/palettes/light#polaroid), Chalkboard (https://brandsweets.com/palettes/dark#chalkboard). — https://brandsweets.com/colors/darksalmon
- **Crimson** #dc143c [pool] — Crimson is paired with #89d1cf in 5 real palettes, including Tiffany & Co.'s brand system and Frost & Ember, as the supporting colour. Seen in: Tiffany & Co. (https://brandsweets.com/colors/brands/tiffany-com), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember), Riot Games (https://brandsweets.com/colors/brands/riotgames-com), Cartier (https://brandsweets.com/colors/brands/cartier-com). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #89d1cf: 6 real palettes, including Salesforce's brand system and Max's brand system, as the lead colour. Seen in: Salesforce (https://brandsweets.com/colors/brands/salesforce-com), Max (https://brandsweets.com/colors/brands/max-com), Mistral AI (https://brandsweets.com/colors/brands/mistral-ai), Calendly (https://brandsweets.com/colors/brands/calendly-com). — https://brandsweets.com/colors/deepskyblue
- **Hunter Green** #355e3b [pool] — Hunter Green is paired with #89d1cf in 4 real palettes, including Canopy and Pine & Birch, as the lead colour. Seen in: Canopy (https://brandsweets.com/palettes/cool#canopy), Pine & Birch (https://brandsweets.com/palettes/clean#pine-and-birch), Neon (https://brandsweets.com/colors/brands/neon-tech), Desert Road (https://brandsweets.com/palettes/warm#desert-road). — https://brandsweets.com/colors/hunter-green
- **Midnight Blue** #191970 [pool] — 5 real palettes, including First Snow and Telehealth put Midnight Blue beside #89d1cf, as the text colour against it. Seen in: First Snow (https://brandsweets.com/palettes/cool#first-snow), Telehealth (https://brandsweets.com/palettes/modern#telehealth), Blue Mono (https://brandsweets.com/palettes/cool#blue-mono), Lavender Milk (https://brandsweets.com/palettes/light#lavender-milk). — https://brandsweets.com/colors/midnightblue
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #89d1cf in 4 real palettes, including Telehealth and 1password's brand system, as the lead colour. Seen in: Telehealth (https://brandsweets.com/palettes/modern#telehealth), 1password (https://brandsweets.com/colors/brands/1password-com), Docker (https://brandsweets.com/colors/brands/docker-com), Brilliant (https://brandsweets.com/colors/brands/brilliant-org). — https://brandsweets.com/colors/royalblue
- **Sage Green** #9caf88 [pool] — Designers have shipped Sage Green with #89d1cf: 4 real palettes, including Stone and Oatmeal, as the supporting colour. Seen in: Stone (https://brandsweets.com/palettes/neutral#stone), Oatmeal (https://brandsweets.com/palettes/neutral#oatmeal), Pine & Birch (https://brandsweets.com/palettes/clean#pine-and-birch), Scale AI (https://brandsweets.com/colors/brands/scale-com). — https://brandsweets.com/colors/sage-green

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

- On white (#ffffff): 1.74:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #32817e (4.59:1); AA: background → #4f4f4f (4.71:1); AAA: text → #255f5e (7.3:1); AAA: background → #333333 (7.27:1)
- On black (#000000): 12.08:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Tiffany & Co.** — accent #81d8d0 (Δ 1.951) — https://brandsweets.com/colors/brands/tiffany-com

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/89d1cf-a2bcbe-d45999-1f282d-e9f1ed?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: "#89d1cf" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.