# #1da5aa

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

## Values

- Hex: `#1da5aa`
- RGB: rgb(29, 165, 170)
- HSL: hsl(182, 71%, 39%)
- OKLCH: oklch(0.658 0.107 198.9)
- Relative luminance: 0.3007
- Nearest named color: Baltic (#279d9f, Δ 2.423) — https://brandsweets.com/colors/baltic
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/1da5aa

## Tints & shades

- Tints (toward white): #21bfc4, #29d5db, #43dadf, #5edfe4, #78e4e8, #8ee9ec, #a8eef0, #c2f3f5, #dcf8f9, #f6fdfe
- Shades (toward black): #1b999d, #18888c, #157b7e, #126a6d, #105d60, #0d4c4e, #0b4041, #082f30, #062223, #031111

## Harmonies

- Complementary: #aa221d
- Analogous: #1daa68, #1d5faa
- Triadic: #aa1da5, #a5aa1d
- Split-complementary: #aa1d5f, #aa681d
- Tetradic: #681daa, #aa221d, #5faa1d

## Colors that go with #1da5aa

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 #1da5aa: softer than #000 and cool enough to feel like part of the same palette. Seen in: Coastal (https://brandsweets.com/palettes/cool#coastal), Lido (https://brandsweets.com/palettes/vivid#lido), 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 #1da5aa 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
- **Copper** #b87333 [pool] — Designers have shipped Copper with #1da5aa: 4 real palettes, including Dusk and Clean Beauty, as the accent. Seen in: Dusk (https://brandsweets.com/palettes/cool#dusk), Clean Beauty (https://brandsweets.com/palettes/minimal#clean-beauty), Wellness (https://brandsweets.com/palettes/warm#wellness), Atelier (https://brandsweets.com/palettes/elegant#atelier). — https://brandsweets.com/colors/copper
- **Crimson** #dc143c [pool] — Crimson is paired with #1da5aa 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), DuckDuckGo (https://brandsweets.com/colors/brands/duckduckgo-com). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #1da5aa: 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), Open House (https://brandsweets.com/palettes/clean#open-house), Dusk (https://brandsweets.com/palettes/cool#dusk). — https://brandsweets.com/colors/denim
- **Midnight Blue** #191970 [pool] — 7 real palettes, including Ford's brand system and SoFi's brand system put Midnight Blue beside #1da5aa, 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 #1da5aa in 4 real palettes, including Confluent's brand system and Khan Academy's brand system, as the supporting colour. Seen in: Confluent (https://brandsweets.com/colors/brands/confluent-io), Khan Academy (https://brandsweets.com/colors/brands/khanacademy-org), Elastic (https://brandsweets.com/colors/brands/elastic-co), Brilliant (https://brandsweets.com/colors/brands/brilliant-org). — https://brandsweets.com/colors/royalblue
- **Taupe** #483c32 [pool] — Taupe is paired with #1da5aa in 11 real palettes, including Rain Garden and Still Water, as that palette's text colour. Seen in: Rain Garden (https://brandsweets.com/palettes/cool#rain-garden), Still Water (https://brandsweets.com/palettes/cool#still-water), Resort (https://brandsweets.com/palettes/light#resort), Cursor (https://brandsweets.com/colors/brands/cursor-com). — 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 → #178387 (4.53:1); AA: background → #2e2e2e (4.54:1); AAA: text → #116264 (7.11:1); AAA: background → #000000 (7.01:1)
- On black (#000000): 7.01:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Ford** — secondary #00a5b5 (Δ 1.687) — 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/1da5aa-a2babe-d45990-1f272d-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: "#1da5aa" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.