# #3bb5a7

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

## Values

- Hex: `#3bb5a7`
- RGB: rgb(59, 181, 167)
- HSL: hsl(173, 51%, 47%)
- OKLCH: oklch(0.703 0.108 184.1)
- Relative luminance: 0.3677
- Nearest named color: lightseagreen (#20b2aa, Δ 1.63) — https://brandsweets.com/colors/lightseagreen
- Moods: neutral
- Page: https://brandsweets.com/colors/3bb5a7

## Tints & shades

- Tints (toward white): #46c3b4, #59c9bc, #6dd0c4, #80d6cc, #97ddd5, #aae4dd, #beeae5, #d1f0ec, #e4f6f4, #f7fdfc
- Shades (toward black): #36a699, #2f9287, #2a8379, #25746a, #20645c, #1a514a, #15413c, #10322e, #0a1f1c, #050f0e

## Harmonies

- Complementary: #b53b49
- Analogous: #3bb56a, #3b86b5
- Triadic: #a73bb5, #b5a73b
- Split-complementary: #b53b86, #b56a3b
- Tetradic: #6a3bb5, #b53b49, #86b53b

## Colors that go with #3bb5a7

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 #3bb5a7: 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), Coastal (https://brandsweets.com/palettes/cool#coastal). — https://brandsweets.com/colors/charcoal
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #3bb5a7: 5 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), Blueprint (https://brandsweets.com/palettes/technical#blueprint), Spotify (https://brandsweets.com/colors/brands/spotify). — https://brandsweets.com/colors/cornflowerblue
- **Denim** #1560bd [pool] — Designers have shipped Denim with #3bb5a7: 4 real palettes, including Open House and Peacock, as the lead colour. Seen in: Open House (https://brandsweets.com/palettes/clean#open-house), Peacock (https://brandsweets.com/palettes/vivid#peacock), Coca-Cola (https://brandsweets.com/colors/brands/coca-cola-com), 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 Confluent's brand system put Midnight Blue beside #3bb5a7, as the lead colour. Seen in: Ford (https://brandsweets.com/colors/brands/ford-com), Confluent (https://brandsweets.com/colors/brands/confluent-io), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), SoFi (https://brandsweets.com/colors/brands/sofi-com). — https://brandsweets.com/colors/midnightblue
- **Mustard Yellow** #ffdb58 [pool] — 4 real palettes, including Diner and Crayon Box put Mustard Yellow beside #3bb5a7, as the accent. Seen in: Diner (https://brandsweets.com/palettes/vivid#diner), Crayon Box (https://brandsweets.com/palettes/playful#crayon-box), Lido (https://brandsweets.com/palettes/vivid#lido), Fresh Juice (https://brandsweets.com/palettes/playful#fresh-juice). — https://brandsweets.com/colors/mustard
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #3bb5a7 in 5 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), Docker (https://brandsweets.com/colors/brands/docker-com). — https://brandsweets.com/colors/royalblue
- **Slate Gray** #708090 [pool] — 4 real palettes, including Indigo SaaS and Ledger Dark put Slate Gray beside #3bb5a7, as the supporting colour. Seen in: Indigo SaaS (https://brandsweets.com/palettes/modern#indigo-saas), Ledger Dark (https://brandsweets.com/palettes/dark#ledger-dark), Graphite (https://brandsweets.com/palettes/technical#graphite), Riverbed (https://brandsweets.com/palettes/muted#riverbed). — https://brandsweets.com/colors/slategray
- **Tomato** #ff6347 [harmony, pool: split] — Tomato is a split-complement of #3bb5a7: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Crayon Box (https://brandsweets.com/palettes/playful#crayon-box), Lido (https://brandsweets.com/palettes/vivid#lido), Fresh Juice (https://brandsweets.com/palettes/playful#fresh-juice). — https://brandsweets.com/colors/tomato

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

- On white (#ffffff): 2.51:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #2a8379 (4.54:1); AA: background → #383838 (4.66:1); AAA: text → #1f6059 (7.3:1); AAA: background → #171717 (7.13:1)
- On black (#000000): 8.35:1 — AA pass, AA-large pass, AAA pass

## Curated palettes containing it

- **Lagoon** (ocean, vivid, light, summer) — #06b6d4, #14b8a6, #fde68a, #ffffff, #134e4a — Turquoise and teal with a sand-yellow on white — shallow tropical water; the deep teal text is the reef. — tool: https://brandsweets.com/palettes/new/06b6d4-14b8a6-fde68a-ffffff-134e4a — collection: https://brandsweets.com/palettes/ocean

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/3bb5a7-a2bebe-d459a3-1f292d-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: "#3bb5a7" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.