# #63c5ae

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

## Values

- Hex: `#63c5ae`
- RGB: rgb(99, 197, 174)
- HSL: hsl(166, 46%, 58%)
- OKLCH: oklch(0.757 0.099 176.2)
- Relative luminance: 0.4564
- Nearest named color: Cockatoo (#58c8b6, Δ 1.248) — https://brandsweets.com/colors/cockatoo
- Moods: neutral
- Page: https://brandsweets.com/colors/63c5ae

## Tints & shades

- Tints (toward white): #72cbb6, #80d0be, #8fd6c5, #9edbcd, #ade1d5, #bce6dc, #cbece4, #daf1ec, #e9f7f3, #f8fcfb
- Shades (toward black): #50bea5, #41af95, #3a9c85, #328672, #2b7362, #246153, #1c4a40, #153830, #0c221d, #060f0d

## Harmonies

- Complementary: #c5637a
- Analogous: #63c57d, #63abc5
- Triadic: #ae63c5, #c5ae63
- Split-complementary: #c563ab, #c57d63
- Tetradic: #7d63c5, #c5637a, #abc563

## Colors that go with #63c5ae

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 #63c5ae: softer than #000 and cool enough to feel like part of the same palette. Seen in: Lagoon (https://brandsweets.com/palettes/vivid#lagoon), Docker (https://brandsweets.com/colors/brands/docker-com), Canopy (https://brandsweets.com/palettes/cool#canopy), N26 (https://brandsweets.com/colors/brands/n26-com). — https://brandsweets.com/colors/charcoal
- **Light Coral** #f08080 [harmony, pool: complementary] — Light Coral sits directly opposite #63c5ae on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Meadow (https://brandsweets.com/palettes/light#meadow). — https://brandsweets.com/colors/lightcoral
- **Crimson** #dc143c [pool] — Crimson is paired with #63c5ae in 4 real palettes, including Tiffany & Co.'s brand system and Riot Games's brand system, as the supporting colour. Seen in: Tiffany & Co. (https://brandsweets.com/colors/brands/tiffany-com), Riot Games (https://brandsweets.com/colors/brands/riotgames-com), DuckDuckGo (https://brandsweets.com/colors/brands/duckduckgo-com), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember). — https://brandsweets.com/colors/crimson
- **Midnight Blue** #191970 [pool] — 5 real palettes, including Confluent's brand system and Open House put Midnight Blue beside #63c5ae, as the lead colour. Seen in: Confluent (https://brandsweets.com/colors/brands/confluent-io), Open House (https://brandsweets.com/palettes/clean#open-house), First Snow (https://brandsweets.com/palettes/cool#first-snow), Ford (https://brandsweets.com/colors/brands/ford-com). — https://brandsweets.com/colors/midnightblue
- **Mustard Yellow** #ffdb58 [pool] — 4 real palettes, including Crayon Box and Fresh Juice put Mustard Yellow beside #63c5ae, as the accent. Seen in: Crayon Box (https://brandsweets.com/palettes/playful#crayon-box), Fresh Juice (https://brandsweets.com/palettes/playful#fresh-juice), Meadow (https://brandsweets.com/palettes/light#meadow), Citrus Grove (https://brandsweets.com/palettes/warm#citrus-grove). — https://brandsweets.com/colors/mustard
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #63c5ae in 4 real palettes, including Brilliant's brand system and Docker's brand system, as the accent. Seen in: Brilliant (https://brandsweets.com/colors/brands/brilliant-org), Docker (https://brandsweets.com/colors/brands/docker-com), Khan Academy (https://brandsweets.com/colors/brands/khanacademy-org), Confluent (https://brandsweets.com/colors/brands/confluent-io). — https://brandsweets.com/colors/royalblue
- **Sandy Brown** #f4a460 [harmony, pool: triadic] — Sandy Brown completes a triad with #63c5ae — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Undergrowth (https://brandsweets.com/palettes/dark#undergrowth), Forest Floor (https://brandsweets.com/palettes/dark#forest-floor), Ubereats (https://brandsweets.com/colors/brands/ubereats-com). — https://brandsweets.com/colors/sandybrown
- **Slate Gray** #708090 [pool] — 10 real palettes, including Ledger Dark and Indigo SaaS put Slate Gray beside #63c5ae, as the supporting colour. Seen in: Ledger Dark (https://brandsweets.com/palettes/dark#ledger-dark), Indigo SaaS (https://brandsweets.com/palettes/modern#indigo-saas), Still Water (https://brandsweets.com/palettes/cool#still-water), Greige (https://brandsweets.com/palettes/neutral#greige). — https://brandsweets.com/colors/slategray

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

- On white (#ffffff): 2.07:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #30826f (4.62:1); AA: background → #454545 (4.62:1); AAA: text → #246153 (7.22:1); AAA: background → #292929 (7.02:1)
- On black (#000000): 10.13:1 — 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/63c5ae-a2bebb-d459b1-1f2a2d-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: "#63c5ae" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.