# #b8c021

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

## Values

- Hex: `#b8c021`
- RGB: rgb(184, 192, 33)
- HSL: hsl(63, 71%, 44%)
- OKLCH: oklch(0.776 0.165 112.8)
- Relative luminance: 0.48
- Nearest named color: Celery (#b4c04c, Δ 2.544) — https://brandsweets.com/colors/celery
- Moods: vivid
- Page: https://brandsweets.com/colors/b8c021

## Tints & shades

- Tints (toward white): #cdd624, #d6de3b, #dae151, #e0e66b, #e4ea81, #e9ed96, #eef2b1, #f3f5c6, #f9fae0, #fdfef6
- Shades (toward black): #a7ae1e, #969d1b, #868c18, #757a15, #646912, #54570f, #43460c, #323409, #212306, #111103

## Harmonies

- Complementary: #2921c0
- Analogous: #c07821, #68c021
- Triadic: #21b8c0, #c021b8
- Split-complementary: #2168c0, #7821c0
- Tetradic: #21c078, #2921c0, #c02168

## Colors that go with #b8c021

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

- **Cornflower Blue** #6495ed [harmony, pool: split] — Cornflower Blue is a split-complement of #b8c021: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. 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
- **Deep Sky Blue** #00bfff [harmony, pool: triadic] — Deep Sky Blue completes a triad with #b8c021 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Blueprint (https://brandsweets.com/palettes/technical#blueprint), Salesforce (https://brandsweets.com/colors/brands/salesforce-com), Learning App (https://brandsweets.com/palettes/playful#learning-app), Mistral AI (https://brandsweets.com/colors/brands/mistral-ai). — https://brandsweets.com/colors/deepskyblue
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #b8c021: 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). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [pool] — Crimson is paired with #b8c021 in 6 real palettes, including Wise's brand system and Tabloid, as the accent. Seen in: Wise (https://brandsweets.com/colors/brands/wise-com), Tabloid (https://brandsweets.com/palettes/editorial#tabloid), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-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 #b8c021 in 4 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 #b8c021: 6 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 #b8c021: 4 real palettes, including Google's brand system and Liquid Death's brand system, as the lead colour. Seen in: Google (https://brandsweets.com/colors/brands/google-com), Liquid Death (https://brandsweets.com/colors/brands/liquiddeath-com), Heatwave (https://brandsweets.com/palettes/warm#heatwave), PostHog (https://brandsweets.com/colors/brands/posthog-com). — https://brandsweets.com/colors/dodgerblue
- **Hunter Green** #355e3b [pool] — Hunter Green is paired with #b8c021 in 4 real palettes, including Fireside and Trailhead, as the supporting colour. Seen in: Fireside (https://brandsweets.com/palettes/dark#fireside), Trailhead (https://brandsweets.com/palettes/warm#trailhead), Pine & Birch (https://brandsweets.com/palettes/clean#pine-and-birch), Desert Road (https://brandsweets.com/palettes/warm#desert-road). — https://brandsweets.com/colors/hunter-green

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

- On white (#ffffff): 1.98:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #757a15 (4.61:1); AA: background → #474747 (4.69:1); AAA: text → #585c10 (7.11:1); AAA: background → #2b2b2b (7.15:1)
- On black (#000000): 10.6:1 — 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/b8c021-b9bea2-4e8ddf-262d1f-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: "#b8c021" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.