# #d9ff00

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

## Values

- Hex: `#d9ff00`
- RGB: rgb(217, 255, 0)
- HSL: hsl(69, 100%, 50%)
- OKLCH: oklch(0.939 0.223 120)
- Relative luminance: 0.8627
- Nearest named color: Banana Flash (#eefe02, Δ 2.686) — https://brandsweets.com/colors/banana-flash
- Moods: vivid
- Page: https://brandsweets.com/colors/d9ff00

## Tints & shades

- Tints (toward white): #ddff1a, #e0ff33, #e3ff47, #e7ff61, #ebff7a, #efff94, #f3ffad, #f6ffc2, #faffdb, #fdfff5
- Shades (toward black): #c3e600, #b2d100, #9cb800, #8ba300, #758a00, #5f7000, #4e5c00, #384200, #272e00, #111400

## Harmonies

- Complementary: #2600ff
- Analogous: #ffa600, #59ff00
- Triadic: #00d9ff, #ff00d9
- Split-complementary: #0059ff, #a600ff
- Tetradic: #00ffa6, #2600ff, #ff0059

## Colors that go with #d9ff00

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

- **Blue** #0000ff [pool] — 4 real palettes, including Robinhood's brand system and Snapchat's brand system put Blue beside #d9ff00, as the supporting colour. Seen in: Robinhood (https://brandsweets.com/colors/brands/robinhood-com), Snapchat (https://brandsweets.com/colors/brands/snapchat-com), Binance (https://brandsweets.com/colors/brands/binance-com), Bumble (https://brandsweets.com/colors/brands/bumble-com). — https://brandsweets.com/colors/blue
- **Crimson** #dc143c [pool] — Crimson is paired with #d9ff00 in 4 real palettes, including Ferrari's brand system and Lay's's brand system, as the lead colour. Seen in: Ferrari (https://brandsweets.com/colors/brands/ferrari-com), Lay's (https://brandsweets.com/colors/brands/lays-com), Wise (https://brandsweets.com/colors/brands/wise-com), Tequila Sunrise (https://brandsweets.com/palettes/vivid#tequila-sunrise). — https://brandsweets.com/colors/crimson
- **Red** #ff0000 [pool] — Red is paired with #d9ff00 in 4 real palettes, including Heineken's brand system and Paddle's brand system, as the accent. Seen in: Heineken (https://brandsweets.com/colors/brands/heineken-com), Paddle (https://brandsweets.com/colors/brands/paddle-com), Wise (https://brandsweets.com/colors/brands/wise-com), Phantom: The money app that'll take you placesLogo PhantomLogo PhantomLogo Phantom (https://brandsweets.com/colors/brands/phantom-com). — https://brandsweets.com/colors/red
- **Plum** #dda0dd [harmony: complementary] — Plum sits directly opposite #d9ff00 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/plum
- **Violet** #ee82ee [harmony, pool: split] — Violet is a split-complement of #d9ff00: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Gumroad (https://brandsweets.com/colors/brands/gumroad-com). — https://brandsweets.com/colors/violet
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #d9ff00: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Zendesk (https://brandsweets.com/colors/brands/zendesk-com). — https://brandsweets.com/colors/charcoal
- **Deep Pink** #ff1493 [pool] — 3 real palettes, including Arcade and JetBrains's brand system put Deep Pink beside #d9ff00, as the lead colour. Seen in: Arcade (https://brandsweets.com/palettes/vivid#arcade), JetBrains (https://brandsweets.com/colors/brands/jetbrains-com), Night Market (https://brandsweets.com/palettes/vivid#night-market). — https://brandsweets.com/colors/deeppink
- **Denim** #1560bd [pool] — Designers have shipped Denim with #d9ff00: 3 real palettes, including Ikea's brand system and FIFA's brand system, as the accent. Seen in: Ikea (https://brandsweets.com/colors/brands/ikea-com), FIFA (https://brandsweets.com/colors/brands/fifa-com), LEGO (https://brandsweets.com/colors/brands/lego-com). — https://brandsweets.com/colors/denim

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

- On white (#ffffff): 1.15:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #687a00 (4.8:1); AA: background → #6b6b6b (4.63:1); AAA: text → #4e5c00 (7.36:1); AAA: background → #4f4f4f (7.12:1)
- On black (#000000): 18.25:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Klaviyo** — secondary #deff00 (Δ 0.627) — https://brandsweets.com/colors/brands/klaviyo-com
- **Robinhood** — accent #ccff00 (Δ 1.585) — https://brandsweets.com/colors/brands/robinhood-com
- **Robinhood** — primary #ccfc04 (Δ 1.84) — https://brandsweets.com/colors/brands/robinhood-com

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/d9ff00-b7bea2-4e7edf-252d1f-f1eee9?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: "#d9ff00" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.