# #63bfbf

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

## Values

- Hex: `#63bfbf`
- RGB: rgb(99, 191, 191)
- HSL: hsl(180, 42%, 57%)
- OKLCH: oklch(0.748 0.088 195.4)
- Relative luminance: 0.4368
- Nearest named color: Cockatoo (#58c8b6, Δ 3.313) — https://brandsweets.com/colors/cockatoo
- Moods: cool, modern
- Page: https://brandsweets.com/colors/63bfbf

## Tints & shades

- Tints (toward white): #72c5c5, #80cbcb, #8fd1d1, #9dd7d7, #afdede, #bee4e4, #cceaea, #dbf0f0, #e9f6f6, #f8fcfc
- Shades (toward black): #51b8b8, #44a7a7, #3d9494, #358282, #2e7070, #255b5b, #1e4848, #163636, #0d2121, #060e0e

## Harmonies

- Complementary: #bf6363
- Analogous: #63bf91, #6391bf
- Triadic: #bf63bf, #bfbf63
- Split-complementary: #bf6391, #bf9163
- Tetradic: #9163bf, #bf6363, #91bf63

## Colors that go with #63bfbf

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 #63bfbf: softer than #000 and cool enough to feel like part of the same palette. Seen in: Lagoon (https://brandsweets.com/palettes/vivid#lagoon), Harbour (https://brandsweets.com/palettes/cool#harbour), N26 (https://brandsweets.com/colors/brands/n26-com), Coastal (https://brandsweets.com/palettes/cool#coastal). — https://brandsweets.com/colors/charcoal
- **Light Coral** #f08080 [harmony, pool: complementary] — Light Coral sits directly opposite #63bfbf on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Sentry (https://brandsweets.com/colors/brands/sentry-io). — https://brandsweets.com/colors/lightcoral
- **Blue** #0000ff [pool] — 4 real palettes, including Canva's brand system and Uber's brand system put Blue beside #63bfbf, as the accent. Seen in: Canva (https://brandsweets.com/colors/brands/canva-com), Uber (https://brandsweets.com/colors/brands/uber-com), Unity (https://brandsweets.com/colors/brands/unity-com), Warp (https://brandsweets.com/colors/brands/warp-dev). — https://brandsweets.com/colors/blue
- **Blush Pink** #e8b4b8 [pool] — 4 real palettes, including Garden Wedding and Rain Garden put Blush Pink beside #63bfbf, as the supporting colour. Seen in: Garden Wedding (https://brandsweets.com/palettes/light#garden-wedding), Rain Garden (https://brandsweets.com/palettes/cool#rain-garden), Estate (https://brandsweets.com/palettes/luxury#estate), Nursery (https://brandsweets.com/palettes/light#nursery). — https://brandsweets.com/colors/blush-pink
- **Dark Olive Green** #556b2f [pool] — Dark Olive Green shows up next to #63bfbf in 5 real palettes, including Warp's brand system and Undergrowth, as the accent. Seen in: Warp (https://brandsweets.com/colors/brands/warp-dev), Undergrowth (https://brandsweets.com/palettes/dark#undergrowth), Forest Floor (https://brandsweets.com/palettes/dark#forest-floor), Olive Grove (https://brandsweets.com/palettes/muted#olive-grove). — https://brandsweets.com/colors/darkolivegreen
- **Denim** #1560bd [pool] — Designers have shipped Denim with #63bfbf: 5 real palettes, including Open House and UEFA's brand system, as the lead colour. Seen in: Open House (https://brandsweets.com/palettes/clean#open-house), UEFA (https://brandsweets.com/colors/brands/uefa-com), Coca-Cola (https://brandsweets.com/colors/brands/coca-cola-com), Venmo (https://brandsweets.com/colors/brands/venmo-com). — https://brandsweets.com/colors/denim
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #63bfbf: 5 real palettes, including Patreon's brand system and Unity's brand system, as the accent. Seen in: Patreon (https://brandsweets.com/colors/brands/patreon-com), Unity (https://brandsweets.com/colors/brands/unity-com), Opensea (https://brandsweets.com/colors/brands/opensea-io), Figma (https://brandsweets.com/colors/brands/figma). — https://brandsweets.com/colors/dodgerblue
- **Midnight Blue** #191970 [pool] — 6 real palettes, including First Snow and Confluent's brand system put Midnight Blue beside #63bfbf, as the text colour against it. Seen in: First Snow (https://brandsweets.com/palettes/cool#first-snow), Confluent (https://brandsweets.com/colors/brands/confluent-io), Open House (https://brandsweets.com/palettes/clean#open-house), Ford (https://brandsweets.com/colors/brands/ford-com). — https://brandsweets.com/colors/midnightblue

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

- On white (#ffffff): 2.16:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #347f7f (4.68:1); AA: background → #424242 (4.66:1); AAA: text → #265e5e (7.38:1); AAA: background → #262626 (7.02:1)
- On black (#000000): 9.74:1 — AA pass, AA-large pass, AAA pass

## Fonts for this mood

- 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/63bfbf-a2bbbe-d45994-1f272d-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: "#63bfbf" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.