# #91b4ca

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

## Values

- Hex: `#91b4ca`
- RGB: rgb(145, 180, 202)
- HSL: hsl(203, 35%, 68%)
- OKLCH: oklch(0.752 0.049 235.9)
- Relative luminance: 0.4293
- Nearest named color: Crystal Lake (#88b5c4, Δ 1.516) — https://brandsweets.com/colors/crystal-lake
- Moods: cool, modern
- Page: https://brandsweets.com/colors/91b4ca

## Tints & shades

- Tints (toward white): #9bbbcf, #a5c2d4, #b0c9d9, #bad0de, #c4d7e3, #cfdee8, #d9e5ed, #e3ecf2, #eef3f7, #f8fafc
- Shades (toward black): #7ca6c0, #6496b4, #5187a9, #467491, #3c637c, #325367, #263f4f, #1c2f3b, #111c22, #070b0e

## Harmonies

- Complementary: #caa791
- Analogous: #91cac3, #9198ca
- Triadic: #ca91b4, #b4ca91
- Split-complementary: #ca9198, #cac391
- Tetradic: #c391ca, #caa791, #98ca91

## Colors that go with #91b4ca

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 #91b4ca: softer than #000 and cool enough to feel like part of the same palette. Seen in: Harbour (https://brandsweets.com/palettes/cool#harbour), Mercury (https://brandsweets.com/colors/brands/mercury-com), Coastal (https://brandsweets.com/palettes/cool#coastal), Paper & Pine (https://brandsweets.com/palettes/minimal#paper-and-pine). — https://brandsweets.com/colors/charcoal
- **Dark Salmon** #e9967a [harmony, pool: complementary] — Dark Salmon sits directly opposite #91b4ca 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
- **Amber** #ffbf00 [pool] — Amber is paired with #91b4ca in 4 real palettes, including Blueprint and NBA's brand system, as the accent. Seen in: Blueprint (https://brandsweets.com/palettes/technical#blueprint), NBA (https://brandsweets.com/colors/brands/nba-com), Salesforce (https://brandsweets.com/colors/brands/salesforce-com), Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 5 real palettes, including Uber's brand system and Canva's brand system put Blue beside #91b4ca, as the accent. Seen in: Uber (https://brandsweets.com/colors/brands/uber-com), Canva (https://brandsweets.com/colors/brands/canva-com), Warp (https://brandsweets.com/colors/brands/warp-dev), Spotify (https://brandsweets.com/colors/brands/spotify). — https://brandsweets.com/colors/blue
- **Blush Pink** #e8b4b8 [pool] — 4 real palettes, including Estate and Garden Wedding put Blush Pink beside #91b4ca, as the accent. Seen in: Estate (https://brandsweets.com/palettes/luxury#estate), Garden Wedding (https://brandsweets.com/palettes/light#garden-wedding), Rain Garden (https://brandsweets.com/palettes/cool#rain-garden), Nursery (https://brandsweets.com/palettes/light#nursery). — https://brandsweets.com/colors/blush-pink
- **Copper** #b87333 [pool] — Designers have shipped Copper with #91b4ca: 5 real palettes, including Clean Beauty and Dusk, as the accent. Seen in: Clean Beauty (https://brandsweets.com/palettes/minimal#clean-beauty), Dusk (https://brandsweets.com/palettes/cool#dusk), Riverbed (https://brandsweets.com/palettes/muted#riverbed), Desert Road (https://brandsweets.com/palettes/warm#desert-road). — https://brandsweets.com/colors/copper
- **Crimson** #dc143c [pool] — Crimson is paired with #91b4ca in 5 real palettes, including JBL's brand system and Riot Games's brand system, as the supporting colour. Seen in: JBL (https://brandsweets.com/colors/brands/jbl-com), Riot Games (https://brandsweets.com/colors/brands/riotgames-com), Tiffany & Co. (https://brandsweets.com/colors/brands/tiffany-com), Cartier (https://brandsweets.com/colors/brands/cartier-com). — https://brandsweets.com/colors/crimson
- **Dark Orange** #ff8c00 [pool] — Dark Orange shows up next to #91b4ca in 4 real palettes, including PayPal's brand system and Learning App, as the accent. Seen in: PayPal (https://brandsweets.com/colors/brands/paypal-com), Learning App (https://brandsweets.com/palettes/playful#learning-app), Elastic (https://brandsweets.com/colors/brands/elastic-co), Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com). — https://brandsweets.com/colors/darkorange

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

- On white (#ffffff): 2.19:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #4b7c9b (4.51:1); AA: background → #424242 (4.59:1); AAA: text → #375b72 (7.24:1); AAA: background → #242424 (7.09:1)
- On black (#000000): 9.59:1 — AA pass, AA-large pass, AAA pass

## 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/91b4ca-9cb0c4-df4e5d-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: "#91b4ca" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.