# #91c5ca

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

## Values

- Hex: `#91c5ca`
- RGB: rgb(145, 197, 202)
- HSL: hsl(185, 35%, 68%)
- OKLCH: oklch(0.789 0.055 203.5)
- Relative luminance: 0.5022
- Nearest named color: Cerulean Skies (#8cc6cb, Δ 0.558) — https://brandsweets.com/colors/cerulean-skies
- Moods: cool, modern
- Page: https://brandsweets.com/colors/91c5ca

## Tints & shades

- Tints (toward white): #9bcbcf, #a5d0d4, #b0d5d9, #badbde, #c4e0e3, #cfe6e8, #d9ebed, #e3f1f2, #eef6f7, #f8fbfc
- Shades (toward black): #7cbac0, #64aeb4, #51a1a9, #468a91, #3c777c, #326367, #264c4f, #1c383b, #112122, #070d0e

## Harmonies

- Complementary: #ca9691
- Analogous: #91cab2, #91a9ca
- Triadic: #ca91c5, #c5ca91
- Split-complementary: #ca91a9, #cab291
- Tetradic: #b291ca, #ca9691, #a9ca91

## Colors that go with #91c5ca

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 #91c5ca: softer than #000 and cool enough to feel like part of the same palette. Seen in: Harbour (https://brandsweets.com/palettes/cool#harbour), Coastal (https://brandsweets.com/palettes/cool#coastal), Dusty Blue (https://brandsweets.com/palettes/cool#dusty-blue), Boeing (https://brandsweets.com/colors/brands/boeing-com). — https://brandsweets.com/colors/charcoal
- **Dark Salmon** #e9967a [harmony, pool: complementary] — Dark Salmon sits directly opposite #91c5ca 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
- **Copper** #b87333 [pool] — Designers have shipped Copper with #91c5ca: 4 real palettes, including Clean Beauty and Desert Road, as the accent. Seen in: Clean Beauty (https://brandsweets.com/palettes/minimal#clean-beauty), Desert Road (https://brandsweets.com/palettes/warm#desert-road), Riverbed (https://brandsweets.com/palettes/muted#riverbed), Bramble (https://brandsweets.com/palettes/muted#bramble). — https://brandsweets.com/colors/copper
- **Crimson** #dc143c [pool] — Crimson is paired with #91c5ca 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 #91c5ca: 6 real palettes, including Max's brand system and Salesforce's brand system, as the supporting colour. Seen in: Max (https://brandsweets.com/colors/brands/max-com), Salesforce (https://brandsweets.com/colors/brands/salesforce-com), Calm (https://brandsweets.com/colors/brands/calm-com), Mistral AI (https://brandsweets.com/colors/brands/mistral-ai). — https://brandsweets.com/colors/deepskyblue
- **Denim** #1560bd [pool] — Designers have shipped Denim with #91c5ca: 5 real palettes, including Open House and UEFA's brand system, as the lead colour. Seen in: Open House (https://brandsweets.com/palettes/clean#open-house), UEFA (https://brandsweets.com/colors/brands/uefa-com), Coca-Cola (https://brandsweets.com/colors/brands/coca-cola-com), Nikon (https://brandsweets.com/colors/brands/nikon-com). — https://brandsweets.com/colors/denim
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #91c5ca: 4 real palettes, including Patreon's brand system and Opensea's brand system, as the accent. Seen in: Patreon (https://brandsweets.com/colors/brands/patreon-com), Opensea (https://brandsweets.com/colors/brands/opensea-io), Figma (https://brandsweets.com/colors/brands/figma), Venmo (https://brandsweets.com/colors/brands/venmo-com). — https://brandsweets.com/colors/dodgerblue
- **Hunter Green** #355e3b [pool] — Hunter Green is paired with #91c5ca 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), Desert Road (https://brandsweets.com/palettes/warm#desert-road), Neon (https://brandsweets.com/colors/brands/neon-tech). — https://brandsweets.com/colors/hunter-green

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

- On white (#ffffff): 1.9:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #418086 (4.51:1); AA: background → #4a4a4a (4.66:1); AAA: text → #306064 (7.04:1); AAA: background → #2e2e2e (7.14:1)
- On black (#000000): 11.04:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Oatly** — accent #98c5d3 (Δ 1.616) — https://brandsweets.com/colors/brands/oatly-com

## 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/91c5ca-a2b8be-df4e88-1f262d-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: "#91c5ca" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.