# #0ca5b0

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

## Values

- Hex: `#0ca5b0`
- RGB: rgb(12, 165, 176)
- HSL: hsl(184, 87%, 37%)
- OKLCH: oklch(0.659 0.111 203.3)
- Relative luminance: 0.3012
- Nearest named color: Baltic (#279d9f, Δ 2.863) — https://brandsweets.com/colors/baltic
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/0ca5b0

## Tints & shades

- Tints (toward white): #0ec0cd, #10dbea, #28e3f0, #45e7f2, #66ebf4, #83eff6, #a0f2f8, #bcf6fa, #d9fafc, #f5fefe
- Shades (toward black): #0b98a2, #0a868f, #097981, #086b72, #075e64, #064c51, #053f43, #043134, #021f21, #011213

## Harmonies

- Complementary: #b0170c
- Analogous: #0cb069, #0c53b0
- Triadic: #b00ca5, #a5b00c
- Split-complementary: #b00c53, #b0690c
- Tetradic: #690cb0, #b0170c, #53b00c

## Colors that go with #0ca5b0

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 #0ca5b0: softer than #000 and cool enough to feel like part of the same palette. Seen in: Lido (https://brandsweets.com/palettes/vivid#lido), Coastal (https://brandsweets.com/palettes/cool#coastal), N26 (https://brandsweets.com/colors/brands/n26-com), Tide Pool (https://brandsweets.com/palettes/cool#tide-pool). — https://brandsweets.com/colors/charcoal
- **Tomato** #ff6347 [harmony, pool: complementary] — Tomato sits directly opposite #0ca5b0 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Lido (https://brandsweets.com/palettes/vivid#lido), Hermès (https://brandsweets.com/colors/brands/hermes-com), Crayon Box (https://brandsweets.com/palettes/playful#crayon-box). — https://brandsweets.com/colors/tomato
- **Cornflower Blue** #6495ed [harmony, pool: analogous] — Cornflower Blue is #0ca5b0's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Arctic (https://brandsweets.com/palettes/clean#arctic), Canva (https://brandsweets.com/colors/brands/canva-com), Blueprint (https://brandsweets.com/palettes/technical#blueprint). — https://brandsweets.com/colors/cornflowerblue
- **Crimson** #dc143c [pool] — Crimson is paired with #0ca5b0 in 5 real palettes, including Diner and Riot Games's brand system, as the lead colour. Seen in: Diner (https://brandsweets.com/palettes/vivid#diner), Riot Games (https://brandsweets.com/colors/brands/riotgames-com), Redfin (https://brandsweets.com/colors/brands/redfin-com), Retro Pop (https://brandsweets.com/palettes/playful#retro-pop). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #0ca5b0: 5 real palettes, including Peacock and Gopro's brand system, as the supporting colour. Seen in: Peacock (https://brandsweets.com/palettes/vivid#peacock), Gopro (https://brandsweets.com/colors/brands/gopro-com), Dusk (https://brandsweets.com/palettes/cool#dusk), Open House (https://brandsweets.com/palettes/clean#open-house). — https://brandsweets.com/colors/denim
- **Midnight Blue** #191970 [pool] — 9 real palettes, including Ford's brand system and SoFi's brand system put Midnight Blue beside #0ca5b0, as the lead colour. Seen in: Ford (https://brandsweets.com/colors/brands/ford-com), SoFi (https://brandsweets.com/colors/brands/sofi-com), Confluent (https://brandsweets.com/colors/brands/confluent-io), Tide Pool (https://brandsweets.com/palettes/cool#tide-pool). — https://brandsweets.com/colors/midnightblue
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #0ca5b0 in 4 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), Brilliant (https://brandsweets.com/colors/brands/brilliant-org). — https://brandsweets.com/colors/royalblue
- **Taupe** #483c32 [pool] — Taupe is paired with #0ca5b0 in 9 real palettes, including Still Water and Rain Garden, as that palette's text colour. Seen in: Still Water (https://brandsweets.com/palettes/cool#still-water), Rain Garden (https://brandsweets.com/palettes/cool#rain-garden), Cursor (https://brandsweets.com/colors/brands/cursor-com), Resort (https://brandsweets.com/palettes/light#resort). — https://brandsweets.com/colors/taupe

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

- On white (#ffffff): 2.99:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #0a828a (4.59:1); AA: background → #2e2e2e (4.54:1); AAA: text → #076269 (7.09:1); AAA: background → #000000 (7.02:1)
- On black (#000000): 7.02:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Ford** — secondary #00a5b5 (Δ 0.761) — https://brandsweets.com/colors/brands/ford-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/0ca5b0-a2b9be-df4e8a-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: "#0ca5b0" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.