# #81c8ee

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

## Values

- Hex: `#81c8ee`
- RGB: rgb(129, 200, 238)
- HSL: hsl(201, 76%, 72%)
- OKLCH: oklch(0.8 0.089 232.8)
- Relative luminance: 0.5215
- Nearest named color: Below Zero (#87cded, Δ 1.615) — https://brandsweets.com/colors/below-zero
- Moods: cool, vivid, light, technical, modern, clean
- Page: https://brandsweets.com/colors/81c8ee

## Tints & shades

- Tints (toward white): #8fcef0, #98d2f1, #a5d8f3, #aedcf4, #bce1f6, #c9e7f8, #d2ebf9, #e0f1fb, #e9f5fc, #f6fbfe
- Shades (toward black): #62baea, #43ace5, #28a1e2, #1c8dca, #1777ab, #13618b, #0f4b6c, #0b3851, #072231, #020d12

## Harmonies

- Complementary: #eea781
- Analogous: #81eede, #8192ee
- Triadic: #ee81c8, #c8ee81
- Split-complementary: #ee8192, #eede81
- Tetradic: #de81ee, #eea781, #92ee81

## Colors that go with #81c8ee

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 #81c8ee: softer than #000 and cool enough to feel like part of the same palette. Seen in: Coastal (https://brandsweets.com/palettes/cool#coastal), Boeing (https://brandsweets.com/colors/brands/boeing-com), Harbour (https://brandsweets.com/palettes/cool#harbour), Mercury (https://brandsweets.com/colors/brands/mercury-com). — https://brandsweets.com/colors/charcoal
- **Dark Salmon** #e9967a [harmony, pool: complementary] — Dark Salmon sits directly opposite #81c8ee 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 #81c8ee in 4 real palettes, including Riot Games's brand system and Tiffany & Co.'s brand system, as the supporting colour. Seen in: Riot Games (https://brandsweets.com/colors/brands/riotgames-com), Tiffany & Co. (https://brandsweets.com/colors/brands/tiffany-com), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember), JBL (https://brandsweets.com/colors/brands/jbl-com). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #81c8ee: 5 real palettes, including UEFA's brand system and Venmo's brand system, as the accent. Seen in: UEFA (https://brandsweets.com/colors/brands/uefa-com), Venmo (https://brandsweets.com/colors/brands/venmo-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 #81c8ee: 4 real palettes, including Opensea's brand system and Patreon's brand system, as the lead colour. Seen in: Opensea (https://brandsweets.com/colors/brands/opensea-io), Patreon (https://brandsweets.com/colors/brands/patreon-com), Figma (https://brandsweets.com/colors/brands/figma), Venmo (https://brandsweets.com/colors/brands/venmo-com). — https://brandsweets.com/colors/dodgerblue
- **Midnight Blue** #191970 [pool] — 7 real palettes, including Telehealth and Lavender Milk put Midnight Blue beside #81c8ee, as the text colour against it. Seen in: Telehealth (https://brandsweets.com/palettes/modern#telehealth), Lavender Milk (https://brandsweets.com/palettes/light#lavender-milk), First Snow (https://brandsweets.com/palettes/cool#first-snow), Blue Mono (https://brandsweets.com/palettes/cool#blue-mono). — https://brandsweets.com/colors/midnightblue
- **Plum** #dda0dd [harmony, pool: triadic] — Plum completes a triad with #81c8ee — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Mercury (https://brandsweets.com/colors/brands/mercury-com), Netlify (https://brandsweets.com/colors/brands/netlify-com), Blossom (https://brandsweets.com/palettes/light#blossom). — https://brandsweets.com/colors/plum
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #81c8ee in 5 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), NBA (https://brandsweets.com/colors/brands/nba-com), Webflow (https://brandsweets.com/colors/brands/webflow-com). — https://brandsweets.com/colors/royalblue

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

- On white (#ffffff): 1.84:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #187db4 (4.53:1); AA: background → #4d4d4d (4.6:1); AAA: text → #125e87 (7.05:1); AAA: background → #303030 (7.18:1)
- On black (#000000): 11.43:1 — AA pass, AA-large pass, AAA pass

## Curated palettes containing it

- **Coastal** (cool, light, clean) — #2a9d8f, #8ecae6, #e9c46a, #f7fafc, #1a2b3c — Sea-teal, sky and sand — bright without shouting; works for travel, wellness, and anything near water. — tool: https://brandsweets.com/palettes/new/2a9d8f-8ecae6-e9c46a-f7fafc-1a2b3c — collection: https://brandsweets.com/palettes/cool

## Fonts for this mood

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

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/81c8ee-9cb1c4-df4e62-1f222d-e9f1f0?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: "#81c8ee" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.