# #63d4d2

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

## Values

- Hex: `#63d4d2`
- RGB: rgb(99, 212, 210)
- HSL: hsl(179, 57%, 61%)
- OKLCH: oklch(0.804 0.103 193.7)
- Relative luminance: 0.5439
- Nearest named color: Hidden Sea Glass (#6fd1c9, Δ 1.392) — https://brandsweets.com/colors/hidden-sea-glass
- Moods: neutral
- Page: https://brandsweets.com/colors/63d4d2

## Tints & shades

- Tints (toward white): #73d9d7, #7fdcda, #8fe0df, #9fe5e4, #afe9e8, #bbecec, #cbf1f0, #dbf5f5, #e7f8f8, #f7fdfd
- Shades (toward black): #4bcecb, #37c8c6, #30b0ae, #2a9896, #248483, #1e6c6b, #175453, #103c3b, #0b2828, #041010

## Harmonies

- Complementary: #d46365
- Analogous: #63d49a, #639dd4
- Triadic: #d263d4, #d4d263
- Split-complementary: #d4639d, #d49a63
- Tetradic: #9a63d4, #d46365, #9dd463

## Colors that go with #63d4d2

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 #63d4d2: softer than #000 and cool enough to feel like part of the same palette. Seen in: UEFA (https://brandsweets.com/colors/brands/uefa-com), Canopy (https://brandsweets.com/palettes/cool#canopy), Coastal (https://brandsweets.com/palettes/cool#coastal), Boeing (https://brandsweets.com/colors/brands/boeing-com). — https://brandsweets.com/colors/charcoal
- **Deep Sky Blue** #00bfff [harmony, pool: analogous] — Deep Sky Blue is #63d4d2's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Salesforce (https://brandsweets.com/colors/brands/salesforce-com), Astro (https://brandsweets.com/colors/brands/astro-build), Max (https://brandsweets.com/colors/brands/max-com), Snowflake AI Data Cloud (https://brandsweets.com/colors/brands/snowflake-com). — https://brandsweets.com/colors/deepskyblue
- **Light Coral** #f08080 [harmony, pool: complementary] — Light Coral sits directly opposite #63d4d2 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
- **Crimson** #dc143c [pool] — Crimson is paired with #63d4d2 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), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember), Formula 1 (https://brandsweets.com/colors/brands/formula1-com). — https://brandsweets.com/colors/crimson
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #63d4d2: 4 real palettes, including Patreon's brand system and Opensea's brand system, as the accent. Seen in: Patreon (https://brandsweets.com/colors/brands/patreon-com), Opensea (https://brandsweets.com/colors/brands/opensea-io), Figma (https://brandsweets.com/colors/brands/figma), Bluesky Social (https://brandsweets.com/colors/brands/bsky-app). — https://brandsweets.com/colors/dodgerblue
- **Plum** #dda0dd [harmony, pool: triadic] — Plum completes a triad with #63d4d2 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Netlify (https://brandsweets.com/colors/brands/netlify-com), Blossom (https://brandsweets.com/palettes/light#blossom), Mercury (https://brandsweets.com/colors/brands/mercury-com). — https://brandsweets.com/colors/plum
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #63d4d2 in 5 real palettes, including Docker's brand system and Telehealth, as the supporting colour. Seen in: Docker (https://brandsweets.com/colors/brands/docker-com), Telehealth (https://brandsweets.com/palettes/modern#telehealth), 1password (https://brandsweets.com/colors/brands/1password-com), Brilliant (https://brandsweets.com/colors/brands/brilliant-org). — https://brandsweets.com/colors/royalblue
- **Slate Gray** #708090 [pool] — 6 real palettes, including Still Water and Ledger Dark put Slate Gray beside #63d4d2, as the lead colour. Seen in: Still Water (https://brandsweets.com/palettes/cool#still-water), Ledger Dark (https://brandsweets.com/palettes/dark#ledger-dark), Dusty Blue (https://brandsweets.com/palettes/cool#dusty-blue), Graphite Mono (https://brandsweets.com/palettes/neutral#graphite-mono). — https://brandsweets.com/colors/slategray

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

- On white (#ffffff): 1.77:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #23807f (4.7:1); AA: background → #4f4f4f (4.63:1); AAA: text → #1a605f (7.29:1); AAA: background → #333333 (7.15:1)
- On black (#000000): 11.88:1 — 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/63d4d2-a2bbbe-d45996-1f272d-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: "#63d4d2" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.