# #28c1eb

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

## Values

- Hex: `#28c1eb`
- RGB: rgb(40, 193, 235)
- HSL: hsl(193, 83%, 54%)
- OKLCH: oklch(0.754 0.132 222.2)
- Relative luminance: 0.4459
- Nearest named color: Blue Bikini (#00bbee, Δ 2.107) — https://brandsweets.com/colors/blue-bikini
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/28c1eb

## Tints & shades

- Tints (toward white): #3bc6ed, #52cdef, #65d2f1, #7cd9f3, #8fdff5, #a2e4f6, #b9ebf8, #ccf0fa, #e3f7fc, #f6fcfe
- Shades (toward black): #15b8e5, #13a5cd, #1192b6, #0f7f9f, #0d6d87, #0a5a70, #084759, #063441, #04222a, #020f13

## Harmonies

- Complementary: #eb5328
- Analogous: #28ebb4, #2860eb
- Triadic: #eb28c1, #c1eb28
- Split-complementary: #eb2860, #ebb428
- Tetradic: #b428eb, #eb5328, #60eb28

## Colors that go with #28c1eb

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 #28c1eb: softer than #000 and cool enough to feel like part of the same palette. Seen in: Lagoon (https://brandsweets.com/palettes/vivid#lagoon), Vimeo (https://brandsweets.com/colors/brands/vimeo-com), Lamborghini (https://brandsweets.com/colors/brands/lamborghini-com), UEFA (https://brandsweets.com/colors/brands/uefa-com). — https://brandsweets.com/colors/charcoal
- **Denim** #1560bd [pool] — Designers have shipped Denim with #28c1eb: 5 real palettes, including Venmo's brand system and UEFA's brand system, as the accent. Seen in: Venmo (https://brandsweets.com/colors/brands/venmo-com), UEFA (https://brandsweets.com/colors/brands/uefa-com), Coca-Cola (https://brandsweets.com/colors/brands/coca-cola-com), Open House (https://brandsweets.com/palettes/clean#open-house). — https://brandsweets.com/colors/denim
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #28c1eb: 4 real palettes, including Patreon's brand system and Figma's brand system, as the accent. Seen in: Patreon (https://brandsweets.com/colors/brands/patreon-com), Figma (https://brandsweets.com/colors/brands/figma), Venmo (https://brandsweets.com/colors/brands/venmo-com), Opensea (https://brandsweets.com/colors/brands/opensea-io). — https://brandsweets.com/colors/dodgerblue
- **Midnight Blue** #191970 [pool] — 8 real palettes, including Confluent's brand system and Kraken's brand system put Midnight Blue beside #28c1eb, as the lead colour. Seen in: Confluent (https://brandsweets.com/colors/brands/confluent-io), Kraken (https://brandsweets.com/colors/brands/kraken-com), Telehealth (https://brandsweets.com/palettes/modern#telehealth), Blue Mono (https://brandsweets.com/palettes/cool#blue-mono). — https://brandsweets.com/colors/midnightblue
- **Powder Blue** #b0e0e6 [pool] — Designers have shipped Powder Blue with #28c1eb: 4 real palettes, including Calendly's brand system and First Snow, as the accent. Seen in: Calendly (https://brandsweets.com/colors/brands/calendly-com), First Snow (https://brandsweets.com/palettes/cool#first-snow), Crypto.com (https://brandsweets.com/colors/brands/crypto-com), Audible (https://brandsweets.com/colors/brands/audible-com). — https://brandsweets.com/colors/powderblue
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #28c1eb in 7 real palettes, including Confluent's brand system and Elastic's brand system, as the supporting colour. Seen in: Confluent (https://brandsweets.com/colors/brands/confluent-io), Elastic (https://brandsweets.com/colors/brands/elastic-co), 1password (https://brandsweets.com/colors/brands/1password-com), NBA (https://brandsweets.com/colors/brands/nba-com). — https://brandsweets.com/colors/royalblue
- **Steel Blue** #4682b4 [pool] — Designers have shipped Steel Blue with #28c1eb: 4 real palettes, including Deep Water and Astro's brand system, as the supporting colour. Seen in: Deep Water (https://brandsweets.com/palettes/dark#deep-water), Astro (https://brandsweets.com/colors/brands/astro-build), Telegram (https://brandsweets.com/colors/brands/telegram-org), Glacier (https://brandsweets.com/palettes/cool#glacier). — https://brandsweets.com/colors/steelblue
- **Coral** #ff7f50 [harmony: complementary] — Coral sits directly opposite #28c1eb 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/coral

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

- On white (#ffffff): 2.12:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #0f7f9f (4.61:1); AA: background → #454545 (4.53:1); AAA: text → #0b5e75 (7.31:1); AAA: background → #262626 (7.15:1)
- On black (#000000): 9.92:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Riot Games** — accent #0bc4e2 (Δ 1.886) — https://brandsweets.com/colors/brands/riotgames-com

## Fonts for this mood

- technical: https://brandsweets.com/fonts/mood/technical
- 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/28c1eb-a2b5be-df4e75-1f242d-e9f1ef?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: "#28c1eb" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.