# #21fd80

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

## Values

- Hex: `#21fd80`
- RGB: rgb(33, 253, 128)
- HSL: hsl(146, 98%, 56%)
- OKLCH: oklch(0.872 0.23 150.9)
- Relative luminance: 0.7213
- Nearest named color: springgreen (#00ff7f, Δ 0.655) — https://brandsweets.com/colors/springgreen
- Moods: vivid
- Page: https://brandsweets.com/colors/21fd80

## Tints & shades

- Tints (toward white): #35fd8c, #49fd97, #62fda6, #77feb1, #8bfebd, #9ffec8, #b3fed4, #cdfee2, #e1ffee, #f5fff9
- Shades (toward black): #08fd72, #02e866, #02ca59, #02b14e, #029743, #017e37, #01652c, #01471f, #002d14, #001409

## Harmonies

- Complementary: #fd219d
- Analogous: #30fd21, #21fdee
- Triadic: #8021fd, #fd8021
- Split-complementary: #ee21fd, #fd2130
- Tetradic: #2130fd, #fd219d, #fdee21

## Colors that go with #21fd80

Named partners (harmony on the OKLCH wheel, co-occurrence in curated palettes and brand systems, and the neutrals that carry it), best first:

- **Violet** #ee82ee [harmony: complementary] — Violet sits directly opposite #21fd80 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/violet
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #21fd80: 3 real palettes, including Remix's brand system and Prime Video's brand system, as the lead colour. Seen in: Remix (https://brandsweets.com/colors/brands/remix-run), Prime Video (https://brandsweets.com/colors/brands/primevideo-com), Astro (https://brandsweets.com/colors/brands/astro-build). — https://brandsweets.com/colors/deepskyblue
- **Light Coral** #f08080 [harmony: split] — Light Coral is a split-complement of #21fd80: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/lightcoral
- **Plum** #dda0dd [harmony: split] — Plum is a split-complement of #21fd80: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/plum
- **Charcoal** #36454f [role] — Charcoal is the text near-black for #21fd80: softer than #000 and cool enough to feel like part of the same palette. — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [pool] — Crimson is paired with #21fd80 in two real palettes: Wise's brand system and Formula 1's brand system, as the accent. Seen in: Wise (https://brandsweets.com/colors/brands/wise-com), Formula 1 (https://brandsweets.com/colors/brands/formula1-com). — https://brandsweets.com/colors/crimson
- **Red** #ff0000 [pool] — Red is paired with #21fd80 in two real palettes: Gatorade's brand system and Wise's brand system, as the supporting colour. Seen in: Gatorade (https://brandsweets.com/colors/brands/gatorade-com), Wise (https://brandsweets.com/colors/brands/wise-com). — https://brandsweets.com/colors/red
- **Taupe** #483c32 [pool] — Taupe is paired with #21fd80 in two real palettes: 7-Eleven's brand system and Astro's brand system, as the lead colour. Seen in: 7-Eleven (https://brandsweets.com/colors/brands/7-eleven-com), Astro (https://brandsweets.com/colors/brands/astro-build). — https://brandsweets.com/colors/taupe

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

- On white (#ffffff): 1.36:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #01883c (4.58:1); AA: background → #616161 (4.55:1); AAA: text → #01652c (7.24:1); AAA: background → #454545 (7.04:1)
- On black (#000000): 15.43:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Form Builder with AI Automation** — accent #00ff84 (Δ 0.579) — https://brandsweets.com/colors/brands/typeform-com

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/21fd80-a2beb1-ce59d4-1f2d2b-eaf1e9?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: "#21fd80" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.