# #1cb09f

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

## Values

- Hex: `#1cb09f`
- RGB: rgb(28, 176, 159)
- HSL: hsl(173, 73%, 40%)
- OKLCH: oklch(0.682 0.117 182.5)
- Relative luminance: 0.338
- Nearest named color: Billiard (#00af9f, Δ 0.607) — https://brandsweets.com/colors/billiard
- Moods: vivid
- Page: https://brandsweets.com/colors/1cb09f

## Tints & shades

- Tints (toward white): #20cbb7, #2bdec9, #41e1cf, #5ce6d5, #76eadc, #91eee3, #abf2ea, #c1f5ef, #dcf9f6, #f6fefd
- Shades (toward black): #199f8f, #179283, #148073, #127367, #0f6157, #0c4f48, #0a423c, #08312c, #062320, #031210

## Harmonies

- Complementary: #b01c2d
- Analogous: #1cb055, #1c77b0
- Triadic: #9f1cb0, #b09f1c
- Split-complementary: #b01c77, #b0551c
- Tetradic: #551cb0, #b01c2d, #77b01c

## Colors that go with #1cb09f

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 #1cb09f: 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), Mint Modern (https://brandsweets.com/palettes/modern#mint-modern). — https://brandsweets.com/colors/charcoal
- **Hot Pink** #ff69b4 [harmony, pool: complementary] — Hot Pink sits directly opposite #1cb09f 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
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #1cb09f: 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] — 7 real palettes, including Ford's brand system and Fintech Trust put Midnight Blue beside #1cb09f, as the lead colour. Seen in: Ford (https://brandsweets.com/colors/brands/ford-com), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Tide Pool (https://brandsweets.com/palettes/cool#tide-pool), Confluent (https://brandsweets.com/colors/brands/confluent-io). — https://brandsweets.com/colors/midnightblue
- **Mustard Yellow** #ffdb58 [pool] — 4 real palettes, including Diner and Lido put Mustard Yellow beside #1cb09f, as the accent. Seen in: Diner (https://brandsweets.com/palettes/vivid#diner), 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/mustard
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #1cb09f in 7 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
- **Taupe** #483c32 [pool] — Taupe is paired with #1cb09f in 12 real palettes, including Resort and Crayon Box, as the text colour against it. Seen in: Resort (https://brandsweets.com/palettes/light#resort), Crayon Box (https://brandsweets.com/palettes/playful#crayon-box), 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 #1cb09f: 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): 2.71:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #158477 (4.57:1); AA: background → #333333 (4.67:1); AAA: text → #0f6157 (7.32:1); AAA: background → #0f0f0f (7.08:1)
- On black (#000000): 7.76:1 — 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/1cb09f-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: "#1cb09f" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.