# #63b699

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

## Values

- Hex: `#63b699`
- RGB: rgb(99, 182, 153)
- HSL: hsl(159, 36%, 55%)
- OKLCH: oklch(0.715 0.093 168.9)
- Relative luminance: 0.3841
- Nearest named color: Electra (#55b492, Δ 1.731) — https://brandsweets.com/colors/electra
- Moods: neutral
- Page: https://brandsweets.com/colors/63b699

## Tints & shades

- Tints (toward white): #71bca2, #82c4ad, #90cbb6, #9ed1bf, #afd9cb, #bde0d4, #cbe7dd, #d9ede6, #eaf5f1, #f8fcfa
- Shades (toward black): #52ad8d, #499c7f, #418b71, #397963, #316855, #275344, #1f4236, #173128, #0f1f19, #070e0b

## Harmonies

- Complementary: #b66380
- Analogous: #63b66f, #63a9b6
- Triadic: #9963b6, #b69963
- Split-complementary: #b663a9, #b66f63
- Tetradic: #6f63b6, #b66380, #a9b663

## Colors that go with #63b699

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 #63b699: 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), Mint Modern (https://brandsweets.com/palettes/modern#mint-modern), Paper & Pine (https://brandsweets.com/palettes/minimal#paper-and-pine). — https://brandsweets.com/colors/charcoal
- **Blue** #0000ff [pool] — 5 real palettes, including Unity's brand system and Canva's brand system put Blue beside #63b699, as the supporting colour. Seen in: Unity (https://brandsweets.com/colors/brands/unity-com), Canva (https://brandsweets.com/colors/brands/canva-com), Lexus (https://brandsweets.com/colors/brands/lexus-com), Spotify (https://brandsweets.com/colors/brands/spotify). — https://brandsweets.com/colors/blue
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #63b699: 4 real palettes, including Canva's brand system and Terminal, as the supporting colour. Seen in: Canva (https://brandsweets.com/colors/brands/canva-com), Terminal (https://brandsweets.com/palettes/technical#terminal), Spotify (https://brandsweets.com/colors/brands/spotify), Arctic (https://brandsweets.com/palettes/clean#arctic). — https://brandsweets.com/colors/cornflowerblue
- **Crimson** #dc143c [pool] — Crimson is paired with #63b699 in 4 real palettes, including DuckDuckGo's brand system and Diner, as the supporting colour. Seen in: DuckDuckGo (https://brandsweets.com/colors/brands/duckduckgo-com), Diner (https://brandsweets.com/palettes/vivid#diner), Riot Games (https://brandsweets.com/colors/brands/riotgames-com), Tiffany & Co. (https://brandsweets.com/colors/brands/tiffany-com). — https://brandsweets.com/colors/crimson
- **Dark Olive Green** #556b2f [pool] — Dark Olive Green shows up next to #63b699 in 4 real palettes, including Undergrowth and Forest Floor, as the supporting colour. Seen in: 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), Oatmeal (https://brandsweets.com/palettes/neutral#oatmeal). — https://brandsweets.com/colors/darkolivegreen
- **Dark Salmon** #e9967a [harmony, pool: triadic] — Dark Salmon completes a triad with #63b699 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Polaroid (https://brandsweets.com/palettes/light#polaroid), Chalkboard (https://brandsweets.com/palettes/dark#chalkboard), Spline (https://brandsweets.com/colors/brands/spline-design). — https://brandsweets.com/colors/darksalmon
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #63b699: 4 real palettes, including Unity's brand system and Spline's brand system, as the lead colour. Seen in: Unity (https://brandsweets.com/colors/brands/unity-com), Spline (https://brandsweets.com/colors/brands/spline-design), Playground (https://brandsweets.com/palettes/bold#playground), Studio Grey (https://brandsweets.com/palettes/minimal#studio-grey). — https://brandsweets.com/colors/dodgerblue
- **Hunter Green** #355e3b [pool] — Hunter Green is paired with #63b699 in 4 real palettes, including Pine & Birch and Neon's brand system, as the lead colour. Seen in: Pine & Birch (https://brandsweets.com/palettes/clean#pine-and-birch), Neon (https://brandsweets.com/colors/brands/neon-tech), Canopy (https://brandsweets.com/palettes/cool#canopy), Darkroom (https://brandsweets.com/palettes/muted#darkroom). — https://brandsweets.com/colors/hunter-green

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

- On white (#ffffff): 2.42:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #3c8069 (4.68:1); AA: background → #3b3b3b (4.63:1); AAA: text → #2e614f (7.15:1); AAA: background → #1c1c1c (7.05:1)
- On black (#000000): 8.68:1 — 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/63b699-a2beb8-d459c0-1f2c2d-e9f1eb?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: "#63b699" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.