# #ffff1f

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

## Values

- Hex: `#ffff1f`
- RGB: rgb(255, 255, 31)
- HSL: hsl(60, 100%, 56%)
- OKLCH: oklch(0.968 0.207 109.7)
- Relative luminance: 0.9288
- Nearest named color: yellow (#ffff00, Δ 0.442) — https://brandsweets.com/colors/yellow
- Moods: vivid
- Page: https://brandsweets.com/colors/ffff1f

## Tints & shades

- Tints (toward white): #ffff33, #ffff47, #ffff61, #ffff75, #ffff8a, #ffff9e, #ffffb3, #ffffcc, #ffffe0, #fffff5
- Shades (toward black): #ffff05, #ebeb00, #cccc00, #b3b300, #999900, #808000, #666600, #474700, #2e2e00, #141400

## Harmonies

- Complementary: #1f1fff
- Analogous: #ff8f1f, #8fff1f
- Triadic: #1fffff, #ff1fff
- Split-complementary: #1f8fff, #8f1fff
- Tetradic: #1fff8f, #1f1fff, #ff1f8f

## Colors that go with #ffff1f

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

- **Lilac** #c8a2c8 [harmony, pool: complementary] — Lilac sits directly opposite #ffff1f on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Phantom: The money app that'll take you placesLogo PhantomLogo PhantomLogo Phantom (https://brandsweets.com/colors/brands/phantom-com). — https://brandsweets.com/colors/lilac
- **Blue** #0000ff [pool] — 4 real palettes, including Snapchat's brand system and Robinhood's brand system put Blue beside #ffff1f, as the supporting colour. Seen in: Snapchat (https://brandsweets.com/colors/brands/snapchat-com), Robinhood (https://brandsweets.com/colors/brands/robinhood-com), Bumble (https://brandsweets.com/colors/brands/bumble-com), Binance (https://brandsweets.com/colors/brands/binance-com). — https://brandsweets.com/colors/blue
- **Taupe** #483c32 [pool] — Taupe is paired with #ffff1f in 4 real palettes, including Calvin Klein's brand system and Tommy Hilfiger's brand system, as the lead colour. Seen in: Calvin Klein (https://brandsweets.com/colors/brands/calvinklein-us), Tommy Hilfiger (https://brandsweets.com/colors/brands/tommy-com), Crayon Box (https://brandsweets.com/palettes/playful#crayon-box), Citrus Grove (https://brandsweets.com/palettes/warm#citrus-grove). — https://brandsweets.com/colors/taupe
- **Violet** #ee82ee [harmony, pool: split] — Violet is a split-complement of #ffff1f: 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
- **Deep Sky Blue** #00bfff [harmony, pool: split] — Deep Sky Blue is a split-complement of #ffff1f: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Prime Video (https://brandsweets.com/colors/brands/primevideo-com). — https://brandsweets.com/colors/deepskyblue
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #ffff1f: 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), Lagoon (https://brandsweets.com/palettes/vivid#lagoon). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [pool] — Crimson is paired with #ffff1f in 3 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), Tequila Sunrise (https://brandsweets.com/palettes/vivid#tequila-sunrise). — https://brandsweets.com/colors/crimson
- **Deep Pink** #ff1493 [pool] — 3 real palettes, including Arcade and JetBrains's brand system put Deep Pink beside #ffff1f, 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

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

- On white (#ffffff): 1.07:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #7a7a00 (4.55:1); AA: background → #707070 (4.62:1); AAA: text → #5c5c00 (7.03:1); AAA: background → #545454 (7.06:1)
- On black (#000000): 19.58:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Calvin Klein** — accent #ffff00 (Δ 0.442) — https://brandsweets.com/colors/brands/calvinklein-us
- **Tommy Hilfiger** — accent #ffff00 (Δ 0.442) — https://brandsweets.com/colors/brands/tommy-com
- **Snapchat** — primary #fffc00 (Δ 0.754) — https://brandsweets.com/colors/brands/snapchat-com
- **Snapchat** — accent #fffc00 (Δ 0.754) — https://brandsweets.com/colors/brands/snapchat-com

## Curated palettes containing it

- **Arcade** (neon, vivid, dark, bold) — #ff2e88, #00f0ff, #faff00, #0a0a14, #f5f5ff — Hot pink, cyan and acid yellow on near-black — cabinet-glow neon; the black surface is what makes the colours light up. — tool: https://brandsweets.com/palettes/new/ff2e88-00f0ff-faff00-0a0a14-f5f5ff — collection: https://brandsweets.com/palettes/neon

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/ffff1f-bbbea2-4e94df-272d1f-f1ede9?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: "#ffff1f" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.