# #31bfa9

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

## Values

- Hex: `#31bfa9`
- RGB: rgb(49, 191, 169)
- HSL: hsl(171, 59%, 47%)
- OKLCH: oklch(0.726 0.121 179.7)
- Relative luminance: 0.4078
- Nearest named color: Emerald Bliss (#4cbdac, Δ 1.634) — https://brandsweets.com/colors/emerald-bliss
- Moods: neutral
- Page: https://brandsweets.com/colors/31bfa9

## Tints & shades

- Tints (toward white): #3ccdb7, #51d2bf, #65d7c6, #79dcce, #92e3d7, #a6e8de, #baede6, #cef2ed, #e3f8f5, #f7fdfc
- Shades (toward black): #2dae9b, #289a89, #248a7b, #1f7a6c, #1b695e, #16554c, #12453d, #0e352f, #08201d, #04100e

## Harmonies

- Complementary: #bf3146
- Analogous: #31bf63, #318dbf
- Triadic: #a931bf, #bfa931
- Split-complementary: #bf318d, #bf6331
- Tetradic: #6331bf, #bf3146, #8dbf31

## Colors that go with #31bfa9

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 #31bfa9: softer than #000 and cool enough to feel like part of the same palette. Seen in: Lagoon (https://brandsweets.com/palettes/vivid#lagoon), N26 (https://brandsweets.com/colors/brands/n26-com), Mint Modern (https://brandsweets.com/palettes/modern#mint-modern), Docker (https://brandsweets.com/colors/brands/docker-com). — https://brandsweets.com/colors/charcoal
- **Hot Pink** #ff69b4 [harmony, pool: complementary] — Hot Pink sits directly opposite #31bfa9 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 #31bfa9 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] — 7 real palettes, including Ford's brand system and Fintech Trust put Midnight Blue beside #31bfa9, as the lead colour. Seen in: Ford (https://brandsweets.com/colors/brands/ford-com), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), 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 #31bfa9, 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 #31bfa9 in 4 real palettes, including Khan Academy's brand system and Brilliant's brand system, as the accent. Seen in: Khan Academy (https://brandsweets.com/colors/brands/khanacademy-org), Brilliant (https://brandsweets.com/colors/brands/brilliant-org), Docker (https://brandsweets.com/colors/brands/docker-com), Confluent (https://brandsweets.com/colors/brands/confluent-io). — https://brandsweets.com/colors/royalblue
- **Taupe** #483c32 [pool] — Taupe is paired with #31bfa9 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 #31bfa9, 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): 2.29:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #218273 (4.66:1); AA: background → #404040 (4.52:1); AAA: text → #196156 (7.28:1); AAA: background → #212121 (7.02:1)
- On black (#000000): 9.16:1 — 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/31bfa9-a2bebd-d459a7-1f292d-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: "#31bfa9" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.