# #ceff0a

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

## Values

- Hex: `#ceff0a`
- RGB: rgb(206, 255, 10)
- HSL: hsl(72, 100%, 52%)
- OKLCH: oklch(0.932 0.227 122.7)
- Relative luminance: 0.8466
- Nearest named color: Atomic Lime (#b9ff03, Δ 2.453) — https://brandsweets.com/colors/atomic-lime
- Moods: vivid
- Page: https://brandsweets.com/colors/ceff0a

## Tints & shades

- Tints (toward white): #d3ff24, #d7ff38, #dcff52, #e0ff66, #e6ff80, #ebff99, #efffad, #f4ffc7, #f8ffdb, #fdfff5
- Shades (toward black): #c0f000, #abd600, #9bc200, #87a800, #728f00, #5e7500, #495c00, #394700, #252e00, #101400

## Harmonies

- Complementary: #3b0aff
- Analogous: #ffb60a, #54ff0a
- Triadic: #0aceff, #ff0ace
- Split-complementary: #0a54ff, #b60aff
- Tetradic: #0affb6, #3b0aff, #ff0a54

## Colors that go with #ceff0a

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

- **Crimson** #dc143c [pool] — Crimson is paired with #ceff0a in 4 real palettes, including Ferrari's brand system and Wise's brand system, as the lead colour. Seen in: Ferrari (https://brandsweets.com/colors/brands/ferrari-com), Wise (https://brandsweets.com/colors/brands/wise-com), Lay's (https://brandsweets.com/colors/brands/lays-com), Tequila Sunrise (https://brandsweets.com/palettes/vivid#tequila-sunrise). — https://brandsweets.com/colors/crimson
- **Red** #ff0000 [pool] — Red is paired with #ceff0a in 4 real palettes, including Heineken's brand system and Wise's brand system, as the accent. Seen in: Heineken (https://brandsweets.com/colors/brands/heineken-com), Wise (https://brandsweets.com/colors/brands/wise-com), Paddle (https://brandsweets.com/colors/brands/paddle-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 #ceff0a 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 #ceff0a: 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 #ceff0a: 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
- **Denim** #1560bd [pool] — Designers have shipped Denim with #ceff0a: 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
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #ceff0a: 3 real palettes, including JetBrains's brand system and Star Wars's brand system, as the supporting colour. Seen in: JetBrains (https://brandsweets.com/colors/brands/jetbrains-com), Star Wars (https://brandsweets.com/colors/brands/starwars-com), Miro (https://brandsweets.com/colors/brands/miro-com). — https://brandsweets.com/colors/dodgerblue
- **Gold** #ffd700 [pool] — Gold shows up next to #ceff0a in 3 real palettes, including Ikea's brand system and Lay's's brand system, as the supporting colour. Seen in: Ikea (https://brandsweets.com/colors/brands/ikea-com), Lay's (https://brandsweets.com/colors/brands/lays-com), Paddle (https://brandsweets.com/colors/brands/paddle-com). — https://brandsweets.com/colors/gold

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

- On white (#ffffff): 1.17:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #668000 (4.51:1); AA: background → #6b6b6b (4.55:1); AAA: text → #495c00 (7.46:1); AAA: background → #4d4d4d (7.22:1)
- On black (#000000): 17.93:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Robinhood** — accent #ccff00 (Δ 0.288) — https://brandsweets.com/colors/brands/robinhood-com
- **Robinhood** — primary #ccfc04 (Δ 0.826) — https://brandsweets.com/colors/brands/robinhood-com
- **Klaviyo** — secondary #deff00 (Δ 1.946) — https://brandsweets.com/colors/brands/klaviyo-com

## Curated palettes containing it

- **Electric Lime** (neon, vivid, bold, light) — #c6ff00, #111111, #ff3d00, #ffffff — One neon on white with black type — lime-and-black is the neon that works in daylight; the orange is a second gear. — tool: https://brandsweets.com/palettes/new/c6ff00-111111-ff3d00-ffffff — collection: https://brandsweets.com/palettes/neon

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/ceff0a-b5bea2-4e77df-242d1f-f1efe9?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: "#ceff0a" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.