# #1bb1af

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

## Values

- Hex: `#1bb1af`
- RGB: rgb(27, 177, 175)
- HSL: hsl(179, 74%, 40%)
- OKLCH: oklch(0.69 0.114 193.4)
- Relative luminance: 0.3477
- Nearest named color: lightseagreen (#20b2aa, Δ 0.888) — https://brandsweets.com/colors/lightseagreen
- Moods: vivid
- Page: https://brandsweets.com/colors/1bb1af

## Tints & shades

- Tints (toward white): #1eccc9, #2adfdc, #40e2e0, #5be6e4, #75eae8, #90eeed, #abf2f1, #c1f6f5, #dcfaf9, #f6fefe
- Shades (toward black): #18a09d, #169290, #13817f, #117372, #0f6260, #0c504f, #0a4342, #073130, #052323, #031211

## Harmonies

- Complementary: #b11b1d
- Analogous: #1bb163, #1b69b1
- Triadic: #af1bb1, #b1af1b
- Split-complementary: #b11b69, #b1631b
- Tetradic: #631bb1, #b11b1d, #69b11b

## Colors that go with #1bb1af

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 #1bb1af: 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), Lido (https://brandsweets.com/palettes/vivid#lido), Coastal (https://brandsweets.com/palettes/cool#coastal). — https://brandsweets.com/colors/charcoal
- **Denim** #1560bd [pool] — Designers have shipped Denim with #1bb1af: 5 real palettes, including Peacock and Open House, as the supporting colour. Seen in: Peacock (https://brandsweets.com/palettes/vivid#peacock), Open House (https://brandsweets.com/palettes/clean#open-house), Coca-Cola (https://brandsweets.com/colors/brands/coca-cola-com), Gopro (https://brandsweets.com/colors/brands/gopro-com). — 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 #1bb1af, as the lead colour. Seen in: Ford (https://brandsweets.com/colors/brands/ford-com), Confluent (https://brandsweets.com/colors/brands/confluent-io), SoFi (https://brandsweets.com/colors/brands/sofi-com), Tide Pool (https://brandsweets.com/palettes/cool#tide-pool). — https://brandsweets.com/colors/midnightblue
- **Mustard Yellow** #ffdb58 [pool] — 4 real palettes, including Lido and Diner put Mustard Yellow beside #1bb1af, as the accent. Seen in: Lido (https://brandsweets.com/palettes/vivid#lido), Diner (https://brandsweets.com/palettes/vivid#diner), Crayon Box (https://brandsweets.com/palettes/playful#crayon-box), Fresh Juice (https://brandsweets.com/palettes/playful#fresh-juice). — https://brandsweets.com/colors/mustard
- **Orange Red** #ff4500 [pool] — Orange Red is paired with #1bb1af in 4 real palettes, including Cursor's brand system and Launch Orange, as the lead colour. Seen in: Cursor (https://brandsweets.com/colors/brands/cursor-com), Launch Orange (https://brandsweets.com/palettes/bold#launch-orange), Figma (https://brandsweets.com/colors/brands/figma), Neon (https://brandsweets.com/colors/brands/neon-tech). — https://brandsweets.com/colors/orangered
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #1bb1af in 5 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), Brilliant (https://brandsweets.com/colors/brands/brilliant-org), Elastic (https://brandsweets.com/colors/brands/elastic-co). — https://brandsweets.com/colors/royalblue
- **Sky Blue** #87ceeb [pool] — Sky Blue is paired with #1bb1af in 4 real palettes, including Coastal and Dusty Blue, as the supporting colour. Seen in: Coastal (https://brandsweets.com/palettes/cool#coastal), Dusty Blue (https://brandsweets.com/palettes/cool#dusty-blue), Still Water (https://brandsweets.com/palettes/cool#still-water), Max (https://brandsweets.com/colors/brands/max-com). — https://brandsweets.com/colors/skyblue
- **Tomato** #ff6347 [harmony, pool: split] — Tomato is a split-complement of #1bb1af: 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), Fresh Juice (https://brandsweets.com/palettes/playful#fresh-juice). — https://brandsweets.com/colors/tomato

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

- On white (#ffffff): 2.64:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #13817f (4.69:1); AA: background → #363636 (4.58:1); AAA: text → #0f6260 (7.15:1); AAA: background → #121212 (7.1:1)
- On black (#000000): 7.95:1 — 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/1bb1af-a2bbbe-d45996-1f272d-e9f1ed?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: "#1bb1af" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.