# #bfbf03

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

## Values

- Hex: `#bfbf03`
- RGB: rgb(191, 191, 3)
- HSL: hsl(60, 97%, 38%)
- OKLCH: oklch(0.779 0.169 109.8)
- Relative luminance: 0.4834
- Nearest named color: Celery (#b4c04c, Δ 3.221) — https://brandsweets.com/colors/celery
- Moods: vivid
- Page: https://brandsweets.com/colors/bfbf03

## Tints & shades

- Tints (toward white): #dddd03, #fbfb04, #fcfc22, #fcfc40, #fdfd5e, #fdfd7c, #fdfd9b, #fefeb9, #fefed7, #fffff5
- Shades (toward black): #b0b003, #9c9c02, #8d8d02, #797902, #696902, #5a5a01, #464601, #373701, #232301, #141400

## Harmonies

- Complementary: #0303bf
- Analogous: #bf6103, #61bf03
- Triadic: #03bfbf, #bf03bf
- Split-complementary: #0361bf, #6103bf
- Tetradic: #03bf61, #0303bf, #bf0361

## Colors that go with #bfbf03

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 body-text near-black for #bfbf03: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Disney (https://brandsweets.com/colors/brands/disney-com), Coastal (https://brandsweets.com/palettes/cool#coastal), Beach Hut (https://brandsweets.com/palettes/light#beach-hut), Campus (https://brandsweets.com/palettes/friendly#campus). — https://brandsweets.com/colors/charcoal
- **Deep Sky Blue** #00bfff [harmony, pool: split] — Deep Sky Blue is a split-complement of #bfbf03: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Salesforce (https://brandsweets.com/colors/brands/salesforce-com), Blueprint (https://brandsweets.com/palettes/technical#blueprint), Mistral AI (https://brandsweets.com/colors/brands/mistral-ai), Learning App (https://brandsweets.com/palettes/playful#learning-app). — https://brandsweets.com/colors/deepskyblue
- **Lilac** #c8a2c8 [harmony, pool: complementary] — Lilac sits directly opposite #bfbf03 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Midnight Luxe (https://brandsweets.com/palettes/luxury#midnight-luxe), Phantom: The money app that'll take you placesLogo PhantomLogo PhantomLogo Phantom (https://brandsweets.com/colors/brands/phantom-com). — https://brandsweets.com/colors/lilac
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #bfbf03: 5 real palettes, including Ahrefs's brand system and Blueprint, as the accent. Seen in: Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com), Blueprint (https://brandsweets.com/palettes/technical#blueprint), Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social), Gopro (https://brandsweets.com/colors/brands/gopro-com). — https://brandsweets.com/colors/cornflowerblue
- **Crimson** #dc143c [pool] — Crimson is paired with #bfbf03 in 7 real palettes, including Tabloid and McDonald's's brand system, as the lead colour. Seen in: Tabloid (https://brandsweets.com/palettes/editorial#tabloid), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Wise (https://brandsweets.com/colors/brands/wise-com), Diner (https://brandsweets.com/palettes/vivid#diner). — https://brandsweets.com/colors/crimson
- **Dark Olive Green** #556b2f [pool] — Dark Olive Green shows up next to #bfbf03 in 5 real palettes, including Farmers Market and Forest Floor, as the supporting colour. Seen in: Farmers Market (https://brandsweets.com/palettes/warm#farmers-market), Forest Floor (https://brandsweets.com/palettes/dark#forest-floor), Undergrowth (https://brandsweets.com/palettes/dark#undergrowth), Olive Grove (https://brandsweets.com/palettes/muted#olive-grove). — https://brandsweets.com/colors/darkolivegreen
- **Denim** #1560bd [pool] — Designers have shipped Denim with #bfbf03: 8 real palettes, including Wikipedia's brand system and Open House, as the supporting colour. Seen in: Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org), Open House (https://brandsweets.com/palettes/clean#open-house), Walmart (https://brandsweets.com/colors/brands/walmart-com), Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-com). — https://brandsweets.com/colors/denim
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #bfbf03: 5 real palettes, including Google's brand system and Heatwave, as the lead colour. Seen in: Google (https://brandsweets.com/colors/brands/google-com), Heatwave (https://brandsweets.com/palettes/warm#heatwave), Liquid Death (https://brandsweets.com/colors/brands/liquiddeath-com), PostHog (https://brandsweets.com/colors/brands/posthog-com). — https://brandsweets.com/colors/dodgerblue

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

- On white (#ffffff): 1.97:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #797902 (4.62:1); AA: background → #4a4a4a (4.5:1); AAA: text → #5a5a01 (7.25:1); AAA: background → #2b2b2b (7.19:1)
- On black (#000000): 10.67:1 — 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/bfbf03-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: "#bfbf03" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.