# #1cb09d

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

## Values

- Hex: `#1cb09d`
- RGB: rgb(28, 176, 157)
- HSL: hsl(172, 73%, 40%)
- OKLCH: oklch(0.681 0.118 181.2)
- Relative luminance: 0.3373
- Nearest named color: Billiard (#00af9f, Δ 0.676) — https://brandsweets.com/colors/billiard
- Moods: vivid
- Page: https://brandsweets.com/colors/1cb09d

## Tints & shades

- Tints (toward white): #20cbb4, #2bdec6, #41e1cc, #5ce6d3, #76eada, #91eee1, #abf2e8, #c1f5ee, #dcf9f6, #f6fefd
- Shades (toward black): #199f8d, #179281, #148072, #127366, #0f6156, #0c4f46, #0a423b, #08312b, #06231f, #031210

## Harmonies

- Complementary: #b01c2f
- Analogous: #1cb052, #1c7ab0
- Triadic: #9d1cb0, #b09d1c
- Split-complementary: #b01c7a, #b0521c
- Tetradic: #521cb0, #b01c2f, #7ab01c

## Colors that go with #1cb09d

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 #1cb09d: 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 #1cb09d 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 #1cb09d: 4 real palettes, including Canva's brand system and Spotify's brand system, as the supporting colour. Seen in: Canva (https://brandsweets.com/colors/brands/canva-com), Spotify (https://brandsweets.com/colors/brands/spotify), Terminal (https://brandsweets.com/palettes/technical#terminal), Arctic (https://brandsweets.com/palettes/clean#arctic). — https://brandsweets.com/colors/cornflowerblue
- **Midnight Blue** #191970 [pool] — 7 real palettes, including Fintech Trust and Ford's brand system put Midnight Blue beside #1cb09d, as the text colour against it. Seen in: Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Ford (https://brandsweets.com/colors/brands/ford-com), 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 #1cb09d, 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 #1cb09d 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 #1cb09d in 13 real palettes, including Resort and Undergrowth, as the text colour against it. Seen in: Resort (https://brandsweets.com/palettes/light#resort), Undergrowth (https://brandsweets.com/palettes/dark#undergrowth), Crayon Box (https://brandsweets.com/palettes/playful#crayon-box), Polaroid (https://brandsweets.com/palettes/light#polaroid). — https://brandsweets.com/colors/taupe
- **Tomato** #ff6347 [harmony, pool: split] — Tomato is a split-complement of #1cb09d: 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 → #158475 (4.58:1); AA: background → #333333 (4.66:1); AAA: text → #0f6156 (7.33:1); AAA: background → #0f0f0f (7.07:1)
- On black (#000000): 7.75:1 — 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/1cb09d-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: "#1cb09d" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.