# #28b4cc

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

## Values

- Hex: `#28b4cc`
- RGB: rgb(40, 180, 204)
- HSL: hsl(189, 67%, 48%)
- OKLCH: oklch(0.71 0.116 212.5)
- Relative luminance: 0.3745
- Nearest named color: Aquarius (#2db0ce, Δ 1.266) — https://brandsweets.com/colors/aquarius
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/28b4cc

## Tints & shades

- Tints (toward white): #37bfd7, #4cc6dc, #61cde0, #77d4e4, #8cdae8, #a1e1ec, #b7e8f1, #cceff5, #e1f6f9, #f6fcfd
- Shades (toward black): #25a5bb, #2192a6, #1d8395, #197080, #16616f, #13525e, #0e4048, #0b3137, #071e22, #030f11

## Harmonies

- Complementary: #cc4128
- Analogous: #28cc93, #2862cc
- Triadic: #cc28b4, #b4cc28
- Split-complementary: #cc2862, #cc9328
- Tetradic: #9328cc, #cc4128, #62cc28

## Colors that go with #28b4cc

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 #28b4cc: softer than #000 and cool enough to feel like part of the same palette. Seen in: Lagoon (https://brandsweets.com/palettes/vivid#lagoon), Lido (https://brandsweets.com/palettes/vivid#lido), Lamborghini (https://brandsweets.com/colors/brands/lamborghini-com), N26 (https://brandsweets.com/colors/brands/n26-com). — https://brandsweets.com/colors/charcoal
- **Denim** #1560bd [pool] — Designers have shipped Denim with #28b4cc: 6 real palettes, including Coca-Cola's brand system and Venmo's brand system, as the accent. Seen in: Coca-Cola (https://brandsweets.com/colors/brands/coca-cola-com), Venmo (https://brandsweets.com/colors/brands/venmo-com), Open House (https://brandsweets.com/palettes/clean#open-house), Gopro (https://brandsweets.com/colors/brands/gopro-com). — https://brandsweets.com/colors/denim
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #28b4cc: 5 real palettes, including Figma's brand system and Patreon's brand system, as the accent. Seen in: Figma (https://brandsweets.com/colors/brands/figma), Patreon (https://brandsweets.com/colors/brands/patreon-com), 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 Ford's brand system put Midnight Blue beside #28b4cc, as the lead colour. Seen in: Confluent (https://brandsweets.com/colors/brands/confluent-io), Ford (https://brandsweets.com/colors/brands/ford-com), SoFi (https://brandsweets.com/colors/brands/sofi-com), Kraken (https://brandsweets.com/colors/brands/kraken-com). — https://brandsweets.com/colors/midnightblue
- **Orange** #ffa500 [pool] — 4 real palettes, including Mistral AI's brand system and Gopro's brand system put Orange beside #28b4cc, as the supporting colour. Seen in: Mistral AI (https://brandsweets.com/colors/brands/mistral-ai), Gopro (https://brandsweets.com/colors/brands/gopro-com), Graphite (https://brandsweets.com/palettes/technical#graphite), Mint Modern (https://brandsweets.com/palettes/modern#mint-modern). — https://brandsweets.com/colors/orange
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #28b4cc 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), Khan Academy (https://brandsweets.com/colors/brands/khanacademy-org), NBA (https://brandsweets.com/colors/brands/nba-com). — https://brandsweets.com/colors/royalblue
- **Taupe** #483c32 [pool] — Taupe is paired with #28b4cc in 9 real palettes, including Cursor's brand system and Crayon Box, as the text colour against it. Seen in: Cursor (https://brandsweets.com/colors/brands/cursor-com), Crayon Box (https://brandsweets.com/palettes/playful#crayon-box), Astro (https://brandsweets.com/colors/brands/astro-build), Resort (https://brandsweets.com/palettes/light#resort). — https://brandsweets.com/colors/taupe
- **Salmon** #fa8072 [harmony: complementary] — Salmon sits directly opposite #28b4cc 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/salmon

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

- On white (#ffffff): 2.47:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #1d7f91 (4.67:1); AA: background → #3b3b3b (4.53:1); AAA: text → #16616f (7.06:1); AAA: background → #1a1a1a (7.04:1)
- On black (#000000): 8.49:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Perplexity** — accent #1fb8cd (Δ 1.101) — https://brandsweets.com/colors/brands/perplexity
- **Tailwind CSS** — primary #06b6d4 (Δ 1.22) — https://brandsweets.com/colors/brands/tailwind-css

## Curated palettes containing it

- **Circuit** (technical, vivid, bold) — #7c3aed, #0a0a0a, #06b6d4, #ffffff — Violet plus cyan is the current AI-product signal — pair it with pure black type to keep it from going candy. — tool: https://brandsweets.com/palettes/new/7c3aed-0a0a0a-06b6d4-ffffff — collection: https://brandsweets.com/palettes/technical
- **Deep Water** (ocean, dark, cool, luxury) — #00b4d8, #0077b6, #caf0f8, #03045e, #e8f6fb — Cyan and mid-blue on abyss navy with a foam highlight — the ocean at depth; the darker the surface, the brighter the water. — tool: https://brandsweets.com/palettes/new/00b4d8-0077b6-caf0f8-03045e-e8f6fb — collection: https://brandsweets.com/palettes/ocean
- **Lagoon** (ocean, vivid, light, summer) — #06b6d4, #14b8a6, #fde68a, #ffffff, #134e4a — Turquoise and teal with a sand-yellow on white — shallow tropical water; the deep teal text is the reef. — tool: https://brandsweets.com/palettes/new/06b6d4-14b8a6-fde68a-ffffff-134e4a — collection: https://brandsweets.com/palettes/ocean

## 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/28b4cc-a2b7be-df4e7e-1f252d-e9f1ee?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: "#28b4cc" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.