# #03bcbf

A color — cool, vivid, technical, modern. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#03bcbf`
- RGB: rgb(3, 188, 191)
- HSL: hsl(181, 97%, 38%)
- OKLCH: oklch(0.721 0.122 196.8)
- Relative luminance: 0.3975
- Nearest named color: lightseagreen (#20b2aa, Δ 3.51) — https://brandsweets.com/colors/lightseagreen
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/03bcbf

## Tints & shades

- Tints (toward white): #03d9dd, #04f7fb, #22f8fc, #40f9fc, #5efafd, #7cfbfd, #9bfcfd, #b9fdfe, #d7fefe, #f5ffff
- Shades (toward black): #03adb0, #02999c, #028a8d, #027779, #026869, #01595a, #014546, #013637, #012323, #001414

## Harmonies

- Complementary: #bf0603
- Analogous: #03bf64, #035ebf
- Triadic: #bf03bc, #bcbf03
- Split-complementary: #bf035e, #bf6403
- Tetradic: #6403bf, #bf0603, #5ebf03

## Colors that go with #03bcbf

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 #03bcbf: 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), Lamborghini (https://brandsweets.com/colors/brands/lamborghini-com). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [pool] — Crimson is paired with #03bcbf in 4 real palettes, including Riot Games's brand system and Diner, as the supporting colour. Seen in: Riot Games (https://brandsweets.com/colors/brands/riotgames-com), Diner (https://brandsweets.com/palettes/vivid#diner), Tiffany & Co. (https://brandsweets.com/colors/brands/tiffany-com), DuckDuckGo (https://brandsweets.com/colors/brands/duckduckgo-com). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #03bcbf: 4 real palettes, including Coca-Cola's brand system and UEFA's brand system, as the accent. Seen in: Coca-Cola (https://brandsweets.com/colors/brands/coca-cola-com), UEFA (https://brandsweets.com/colors/brands/uefa-com), Open House (https://brandsweets.com/palettes/clean#open-house), Venmo (https://brandsweets.com/colors/brands/venmo-com). — https://brandsweets.com/colors/denim
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #03bcbf: 5 real palettes, including Unity's brand system and Patreon's brand system, as the lead colour. Seen in: Unity (https://brandsweets.com/colors/brands/unity-com), Patreon (https://brandsweets.com/colors/brands/patreon-com), Figma (https://brandsweets.com/colors/brands/figma), Venmo (https://brandsweets.com/colors/brands/venmo-com). — https://brandsweets.com/colors/dodgerblue
- **Midnight Blue** #191970 [pool] — 8 real palettes, including Confluent's brand system and Ford's brand system put Midnight Blue beside #03bcbf, as the lead colour. Seen in: Confluent (https://brandsweets.com/colors/brands/confluent-io), Ford (https://brandsweets.com/colors/brands/ford-com), SoFi (https://brandsweets.com/colors/brands/sofi-com), First Snow (https://brandsweets.com/palettes/cool#first-snow). — https://brandsweets.com/colors/midnightblue
- **Mustard Yellow** #ffdb58 [pool] — 4 real palettes, including Crayon Box and Lido put Mustard Yellow beside #03bcbf, as the accent. Seen in: Crayon Box (https://brandsweets.com/palettes/playful#crayon-box), Lido (https://brandsweets.com/palettes/vivid#lido), Diner (https://brandsweets.com/palettes/vivid#diner), Fresh Juice (https://brandsweets.com/palettes/playful#fresh-juice). — https://brandsweets.com/colors/mustard
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #03bcbf 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
- **Light Coral** #f08080 [harmony: complementary] — Light Coral sits directly opposite #03bcbf 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/lightcoral

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

- On white (#ffffff): 2.35:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #028083 (4.75:1); AA: background → #3d3d3d (4.63:1); AAA: text → #026364 (7.07:1); AAA: background → #1f1f1f (7.02:1)
- On black (#000000): 8.95:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Netlify** — primary #04bcbc (Δ 0.449) — https://brandsweets.com/colors/brands/netlify-com
- **Prisma** — primary #00bbcb (Δ 1.908) — https://brandsweets.com/colors/brands/prisma-io
- **Prisma** — secondary #00bbcb (Δ 1.908) — https://brandsweets.com/colors/brands/prisma-io

## Fonts for this mood

- technical: https://brandsweets.com/fonts/mood/technical
- modern: https://brandsweets.com/fonts/mood/modern

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/03bcbf-a2babe-d45992-1f272d-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: "#03bcbf" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.