# #31aa9a

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

## Values

- Hex: `#31aa9a`
- RGB: rgb(49, 170, 154)
- HSL: hsl(172, 55%, 43%)
- OKLCH: oklch(0.669 0.107 182.2)
- Relative luminance: 0.3174
- Nearest named color: Billiard (#00af9f, Δ 1.621) — https://brandsweets.com/colors/billiard
- Moods: neutral
- Page: https://brandsweets.com/colors/31aa9a

## Tints & shades

- Tints (toward white): #38c2af, #49cab9, #61d1c2, #75d7ca, #8cded3, #a0e3da, #b8eae4, #ccf0eb, #e3f7f4, #f7fdfc
- Shades (toward black): #2d9a8c, #288a7d, #247b6f, #1f6b61, #1c5f56, #174f48, #123f39, #0e2f2b, #09201d, #05100e

## Harmonies

- Complementary: #aa3141
- Analogous: #31aa5e, #317eaa
- Triadic: #9a31aa, #aa9a31
- Split-complementary: #aa317e, #aa5e31
- Tetradic: #5e31aa, #aa3141, #7eaa31

## Colors that go with #31aa9a

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 #31aa9a: softer than #000 and cool enough to feel like part of the same palette. Seen in: N26 (https://brandsweets.com/colors/brands/n26-com), Lagoon (https://brandsweets.com/palettes/vivid#lagoon), Coastal (https://brandsweets.com/palettes/cool#coastal), Tide Pool (https://brandsweets.com/palettes/cool#tide-pool). — https://brandsweets.com/colors/charcoal
- **Copper** #b87333 [pool] — Designers have shipped Copper with #31aa9a: 4 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), Wellness (https://brandsweets.com/palettes/warm#wellness), Riverbed (https://brandsweets.com/palettes/muted#riverbed). — https://brandsweets.com/colors/copper
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #31aa9a: 4 real palettes, including Canva's brand system and Arctic, as the supporting colour. Seen in: Canva (https://brandsweets.com/colors/brands/canva-com), Arctic (https://brandsweets.com/palettes/clean#arctic), Spotify (https://brandsweets.com/colors/brands/spotify), Terminal (https://brandsweets.com/palettes/technical#terminal). — https://brandsweets.com/colors/cornflowerblue
- **Midnight Blue** #191970 [pool] — 8 real palettes, including Ford's brand system and Tide Pool put Midnight Blue beside #31aa9a, as the lead colour. Seen in: Ford (https://brandsweets.com/colors/brands/ford-com), Tide Pool (https://brandsweets.com/palettes/cool#tide-pool), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Confluent (https://brandsweets.com/colors/brands/confluent-io). — https://brandsweets.com/colors/midnightblue
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #31aa9a in 6 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), Confluent (https://brandsweets.com/colors/brands/confluent-io), Console Light (https://brandsweets.com/palettes/technical#console-light). — https://brandsweets.com/colors/royalblue
- **Taupe** #483c32 [pool] — Taupe is paired with #31aa9a in 15 real palettes, including Resort and Rain Garden, as the text colour against it. Seen in: Resort (https://brandsweets.com/palettes/light#resort), Rain Garden (https://brandsweets.com/palettes/cool#rain-garden), Undergrowth (https://brandsweets.com/palettes/dark#undergrowth), Polaroid (https://brandsweets.com/palettes/light#polaroid). — https://brandsweets.com/colors/taupe
- **Tomato** #ff6347 [harmony, pool: split] — Tomato is a split-complement of #31aa9a: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Lido (https://brandsweets.com/palettes/vivid#lido), Crayon Box (https://brandsweets.com/palettes/playful#crayon-box), Hermès (https://brandsweets.com/colors/brands/hermes-com). — https://brandsweets.com/colors/tomato
- **Deep Pink** #ff1493 [harmony: complementary] — Deep Pink sits directly opposite #31aa9a on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. — https://brandsweets.com/colors/deeppink

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

- On white (#ffffff): 2.86:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #268276 (4.63:1); AA: background → #303030 (4.62:1); AAA: text → #1d6359 (7.04:1); AAA: background → #080808 (7.01:1)
- On black (#000000): 7.35:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **N26** — primary #48ac98 (Δ 1.588) — https://brandsweets.com/colors/brands/n26-com

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/31aa9a-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: "#31aa9a" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.