# #28898a

A color — cool, modern. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#28898a`
- RGB: rgb(40, 137, 138)
- HSL: hsl(181, 55%, 35%)
- OKLCH: oklch(0.576 0.087 196)
- Relative luminance: 0.2018
- Nearest named color: darkcyan (#008b8b, Δ 1.19) — https://brandsweets.com/colors/darkcyan
- Moods: cool, modern
- Page: https://brandsweets.com/colors/28898a

## Tints & shades

- Tints (toward white): #2fa0a2, #37bbbe, #49c8ca, #61cfd1, #7dd8d9, #94dfe0, #ace6e7, #c4edee, #dff5f6, #f7fdfd
- Shades (toward black): #257d7e, #217173, #1e6667, #1a5a5b, #174e4f, #123e3f, #0f3333, #0b2728, #081b1c, #051010

## Harmonies

- Complementary: #8a2a28
- Analogous: #288a5b, #28588a
- Triadic: #8a2889, #898a28
- Split-complementary: #8a2858, #8a5b28
- Tetradic: #5b288a, #8a2a28, #588a28

## Colors that go with #28898a

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 #28898a: 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), Beach Hut (https://brandsweets.com/palettes/light#beach-hut), Coastal (https://brandsweets.com/palettes/cool#coastal). — https://brandsweets.com/colors/charcoal
- **Copper** #b87333 [harmony, pool: triadic] — Copper completes a triad with #28898a — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Riverbed (https://brandsweets.com/palettes/muted#riverbed), Wellness (https://brandsweets.com/palettes/warm#wellness), Clean Beauty (https://brandsweets.com/palettes/minimal#clean-beauty), Atelier (https://brandsweets.com/palettes/elegant#atelier). — https://brandsweets.com/colors/copper
- **Crimson** #dc143c [harmony, pool: complementary] — Crimson sits directly opposite #28898a on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Redfin (https://brandsweets.com/colors/brands/redfin-com), Diner (https://brandsweets.com/palettes/vivid#diner), Retro Pop (https://brandsweets.com/palettes/playful#retro-pop), Gemstone (https://brandsweets.com/palettes/vivid#gemstone). — https://brandsweets.com/colors/crimson
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #28898a: 5 real palettes, including Intel's brand system and Ink & Paper, as the lead colour. Seen in: Intel (https://brandsweets.com/colors/brands/intel-com), Ink & Paper (https://brandsweets.com/palettes/minimal#ink-and-paper), Glacier (https://brandsweets.com/palettes/cool#glacier), Hershey's (https://brandsweets.com/colors/brands/hersheys-com). — https://brandsweets.com/colors/cobalt
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #28898a: 4 real palettes, including Deep Water and Telegram's brand system, as the lead colour. Seen in: Deep Water (https://brandsweets.com/palettes/dark#deep-water), Telegram (https://brandsweets.com/colors/brands/telegram-org), Astro (https://brandsweets.com/colors/brands/astro-build), Warp (https://brandsweets.com/colors/brands/warp-dev). — https://brandsweets.com/colors/deepskyblue
- **Denim** #1560bd [pool] — Designers have shipped Denim with #28898a: 12 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
- **Firebrick** #b22222 [pool] — Designers have shipped Firebrick with #28898a: 4 real palettes, including Wendy's's brand system and Honda's brand system, as the supporting colour. Seen in: Wendy's (https://brandsweets.com/colors/brands/wendys-com), Honda (https://brandsweets.com/colors/brands/honda-com), Newsprint (https://brandsweets.com/palettes/editorial#newsprint), AT&T (https://brandsweets.com/colors/brands/att-com). — https://brandsweets.com/colors/firebrick
- **Goldenrod** #daa520 [pool] — Goldenrod shows up next to #28898a in 5 real palettes, including Sapphire & Gold and Mid-Century, as the supporting colour. Seen in: Sapphire & Gold (https://brandsweets.com/palettes/luxury#sapphire-and-gold), Mid-Century (https://brandsweets.com/palettes/warm#mid-century), Ledger Dark (https://brandsweets.com/palettes/dark#ledger-dark), Noir Beauty (https://brandsweets.com/palettes/dark#noir-beauty). — https://brandsweets.com/colors/goldenrod

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

- On white (#ffffff): 4.17:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #268182 (4.62:1); AA: background → #0f0f0f (4.6:1); AAA: text → #1d6263 (7.05:1)
- On black (#000000): 5.04:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #31a8aa (7.31:1)

## Fonts for this mood

- modern: https://brandsweets.com/fonts/mood/modern

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/28898a-a2babe-d45992-1f272d-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: "#28898a" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.