# #15c1aa

A color — vivid. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#15c1aa`
- RGB: rgb(21, 193, 170)
- HSL: hsl(172, 80%, 42%)
- OKLCH: oklch(0.728 0.129 180)
- Relative luminance: 0.412
- Nearest named color: Emerald Bliss (#4cbdac, Δ 2.442) — https://brandsweets.com/colors/emerald-bliss
- Moods: vivid
- Page: https://brandsweets.com/colors/15c1aa

## Tints & shades

- Tints (toward white): #18dcc2, #27e7cd, #43ead4, #5aedd9, #75f0df, #91f3e6, #a8f5eb, #c3f8f1, #dafbf7, #f6fefd
- Shades (toward black): #13ae9a, #119c8a, #108e7d, #0e7c6d, #0c6a5d, #0a574d, #08453d, #063731, #042520, #021210

## Harmonies

- Complementary: #c1152c
- Analogous: #15c154, #1582c1
- Triadic: #aa15c1, #c1aa15
- Split-complementary: #c11582, #c15415
- Tetradic: #5415c1, #c1152c, #82c115

## Colors that go with #15c1aa

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 #15c1aa: softer than #000 and cool enough to feel like part of the same palette. Seen in: Lagoon (https://brandsweets.com/palettes/vivid#lagoon), Mint Modern (https://brandsweets.com/palettes/modern#mint-modern), N26 (https://brandsweets.com/colors/brands/n26-com), Docker (https://brandsweets.com/colors/brands/docker-com). — https://brandsweets.com/colors/charcoal
- **Hot Pink** #ff69b4 [harmony, pool: complementary] — Hot Pink sits directly opposite #15c1aa on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Terminal (https://brandsweets.com/palettes/technical#terminal). — https://brandsweets.com/colors/hotpink
- **Crimson** #dc143c [pool] — Crimson is paired with #15c1aa in 4 real palettes, including Riot Games's brand system and DuckDuckGo's brand system, as the supporting colour. Seen in: Riot Games (https://brandsweets.com/colors/brands/riotgames-com), DuckDuckGo (https://brandsweets.com/colors/brands/duckduckgo-com), Diner (https://brandsweets.com/palettes/vivid#diner), Tiffany & Co. (https://brandsweets.com/colors/brands/tiffany-com). — https://brandsweets.com/colors/crimson
- **Midnight Blue** #191970 [pool] — 5 real palettes, including Fintech Trust and Ford's brand system put Midnight Blue beside #15c1aa, as the text colour against it. Seen in: Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Ford (https://brandsweets.com/colors/brands/ford-com), Confluent (https://brandsweets.com/colors/brands/confluent-io), SoFi (https://brandsweets.com/colors/brands/sofi-com). — https://brandsweets.com/colors/midnightblue
- **Mustard Yellow** #ffdb58 [pool] — 5 real palettes, including Crayon Box and Fresh Juice put Mustard Yellow beside #15c1aa, as the accent. Seen in: Crayon Box (https://brandsweets.com/palettes/playful#crayon-box), Fresh Juice (https://brandsweets.com/palettes/playful#fresh-juice), Diner (https://brandsweets.com/palettes/vivid#diner), Lido (https://brandsweets.com/palettes/vivid#lido). — https://brandsweets.com/colors/mustard
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #15c1aa in 4 real palettes, including Khan Academy's brand system and Docker's brand system, as the accent. Seen in: Khan Academy (https://brandsweets.com/colors/brands/khanacademy-org), Docker (https://brandsweets.com/colors/brands/docker-com), Brilliant (https://brandsweets.com/colors/brands/brilliant-org), Confluent (https://brandsweets.com/colors/brands/confluent-io). — https://brandsweets.com/colors/royalblue
- **Taupe** #483c32 [pool] — Taupe is paired with #15c1aa in 14 real palettes, including Crayon Box and Resort, as the text colour against it. Seen in: Crayon Box (https://brandsweets.com/palettes/playful#crayon-box), Resort (https://brandsweets.com/palettes/light#resort), Chime (https://brandsweets.com/colors/brands/chime-com), Polaroid (https://brandsweets.com/palettes/light#polaroid). — https://brandsweets.com/colors/taupe
- **Blue** #0000ff [pool] — 3 real palettes, including Canva's brand system and Unity's brand system put Blue beside #15c1aa, as the accent. Seen in: Canva (https://brandsweets.com/colors/brands/canva-com), Unity (https://brandsweets.com/colors/brands/unity-com), Spotify (https://brandsweets.com/colors/brands/spotify). — https://brandsweets.com/colors/blue

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

- On white (#ffffff): 2.27:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #0f8575 (4.53:1); AA: background → #404040 (4.56:1); AAA: text → #0b6055 (7.45:1); AAA: background → #212121 (7.09:1)
- On black (#000000): 9.24:1 — AA pass, AA-large pass, AAA pass

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/15c1aa-a2bebe-d459a5-1f292d-e9f1ec?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: "#15c1aa" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.